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Finding the Fourth Proportional to 8,709,966.87, 13,064,106.08 and 2,644,751.90

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Solution

The fourth proportional to 8,709,966.87, 13,064,106.08 and 2,644,751.90 is: 3,966,871.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709,966.87 : 13,064,106.08 = 2,644,751.90 : x
  2. Step 2: Convert to fraction form
    8,709,966.87/13,064,106.08 = 2,644,751.90/x
  3. Step 3: Cross multiply
    8,709,966.87x = 13,064,106.08 × 2,644,751.90
  4. Step 4: Simplify right side
    8,709,966.87x = 34,551,319,396,318.05
  5. Step 5: Solve for x
    x = 34,551,319,396,318.05/8,709,966.87
  6. Step 6: Final answer
    x = 3,966,871.51

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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.