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Finding the Fourth Proportional to 60,718.75, 91,074.85 and 18,598.88

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Solution

The fourth proportional to 60,718.75, 91,074.85 and 18,598.88 is: 27,897.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,718.75 : 91,074.85 = 18,598.88 : x
  2. Step 2: Convert to fraction form
    60,718.75/91,074.85 = 18,598.88/x
  3. Step 3: Cross multiply
    60,718.75x = 91,074.85 × 18,598.88
  4. Step 4: Simplify right side
    60,718.75x = 1,693,890,387.36
  5. Step 5: Solve for x
    x = 1,693,890,387.36/60,718.75
  6. Step 6: Final answer
    x = 27,897.32

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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.