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Finding the Fourth Proportional to 8,809,801.70, 13,214,702.55 and 3,130,600.10

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Solution

The fourth proportional to 8,809,801.70, 13,214,702.55 and 3,130,600.10 is: 4,695,900.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809,801.70 : 13,214,702.55 = 3,130,600.10 : x
  2. Step 2: Convert to fraction form
    8,809,801.70/13,214,702.55 = 3,130,600.10/x
  3. Step 3: Cross multiply
    8,809,801.70x = 13,214,702.55 × 3,130,600.10
  4. Step 4: Simplify right side
    8,809,801.70x = 41,369,949,124,500.26
  5. Step 5: Solve for x
    x = 41,369,949,124,500.26/8,809,801.70
  6. Step 6: Final answer
    x = 4,695,900.15

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.