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Finding the Fourth Proportional to 29,290.68, 40,425.08 and 17,957.90

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Solution

The fourth proportional to 29,290.68, 40,425.08 and 17,957.90 is: 24,784.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,290.68 : 40,425.08 = 17,957.90 : x
  2. Step 2: Convert to fraction form
    29,290.68/40,425.08 = 17,957.90/x
  3. Step 3: Cross multiply
    29,290.68x = 40,425.08 × 17,957.90
  4. Step 4: Simplify right side
    29,290.68x = 725,949,555.41
  5. Step 5: Solve for x
    x = 725,949,555.41/29,290.68
  6. Step 6: Final answer
    x = 24,784.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.