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Finding the Fourth Proportional to 60,938.64, 84,080.16 and 38,281.32

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Solution

The fourth proportional to 60,938.64, 84,080.16 and 38,281.32 is: 52,818.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,938.64 : 84,080.16 = 38,281.32 : x
  2. Step 2: Convert to fraction form
    60,938.64/84,080.16 = 38,281.32/x
  3. Step 3: Cross multiply
    60,938.64x = 84,080.16 × 38,281.32
  4. Step 4: Simplify right side
    60,938.64x = 3,218,699,510.61
  5. Step 5: Solve for x
    x = 3,218,699,510.61/60,938.64
  6. Step 6: Final answer
    x = 52,818.70

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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.