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Finding the Fourth Proportional to 62,117.84, 85,700.78 and 40,620.17

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Solution

The fourth proportional to 62,117.84, 85,700.78 and 40,620.17 is: 56,041.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,117.84 : 85,700.78 = 40,620.17 : x
  2. Step 2: Convert to fraction form
    62,117.84/85,700.78 = 40,620.17/x
  3. Step 3: Cross multiply
    62,117.84x = 85,700.78 × 40,620.17
  4. Step 4: Simplify right side
    62,117.84x = 3,481,179,621.13
  5. Step 5: Solve for x
    x = 3,481,179,621.13/62,117.84
  6. Step 6: Final answer
    x = 56,041.55

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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.