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Finding the Fourth Proportional to 9,220.00, 13,822.92 and 4,772.90

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Solution

The fourth proportional to 9,220.00, 13,822.92 and 4,772.90 is: 7,155.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,220.00 : 13,822.92 = 4,772.90 : x
  2. Step 2: Convert to fraction form
    9,220.00/13,822.92 = 4,772.90/x
  3. Step 3: Cross multiply
    9,220.00x = 13,822.92 × 4,772.90
  4. Step 4: Simplify right side
    9,220.00x = 65,975,390.41
  5. Step 5: Solve for x
    x = 65,975,390.41/9,220.00
  6. Step 6: Final answer
    x = 7,155.68

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1.5x scale

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.