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Finding the Fourth Proportional to 60,573.72, 90,841.17 and 20,039.70

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Solution

The fourth proportional to 60,573.72, 90,841.17 and 20,039.70 is: 30,053.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,573.72 : 90,841.17 = 20,039.70 : x
  2. Step 2: Convert to fraction form
    60,573.72/90,841.17 = 20,039.70/x
  3. Step 3: Cross multiply
    60,573.72x = 90,841.17 × 20,039.70
  4. Step 4: Simplify right side
    60,573.72x = 1,820,429,794.45
  5. Step 5: Solve for x
    x = 1,820,429,794.45/60,573.72
  6. Step 6: Final answer
    x = 30,053.13

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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.