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Finding the Fourth Proportional to 57,681.64, 86,366.70 and 29,921.32

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Solution

The fourth proportional to 57,681.64, 86,366.70 and 29,921.32 is: 44,801.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,681.64 : 86,366.70 = 29,921.32 : x
  2. Step 2: Convert to fraction form
    57,681.64/86,366.70 = 29,921.32/x
  3. Step 3: Cross multiply
    57,681.64x = 86,366.70 × 29,921.32
  4. Step 4: Simplify right side
    57,681.64x = 2,584,205,668.04
  5. Step 5: Solve for x
    x = 2,584,205,668.04/57,681.64
  6. Step 6: Final answer
    x = 44,801.18

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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.