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Finding the Fourth Proportional to 60,642.59, 90,925.71 and 18,508.66

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Solution

The fourth proportional to 60,642.59, 90,925.71 and 18,508.66 is: 27,751.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,642.59 : 90,925.71 = 18,508.66 : x
  2. Step 2: Convert to fraction form
    60,642.59/90,925.71 = 18,508.66/x
  3. Step 3: Cross multiply
    60,642.59x = 90,925.71 × 18,508.66
  4. Step 4: Simplify right side
    60,642.59x = 1,682,912,597.02
  5. Step 5: Solve for x
    x = 1,682,912,597.02/60,642.59
  6. Step 6: Final answer
    x = 27,751.33

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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.