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Finding the Fourth Proportional to 40,390.70, 60,578.85 and 25,573.10

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Solution

The fourth proportional to 40,390.70, 60,578.85 and 25,573.10 is: 38,355.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,390.70 : 60,578.85 = 25,573.10 : x
  2. Step 2: Convert to fraction form
    40,390.70/60,578.85 = 25,573.10/x
  3. Step 3: Cross multiply
    40,390.70x = 60,578.85 × 25,573.10
  4. Step 4: Simplify right side
    40,390.70x = 1,549,188,988.94
  5. Step 5: Solve for x
    x = 1,549,188,988.94/40,390.70
  6. Step 6: Final answer
    x = 38,355.09

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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.