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Finding the Fourth Proportional to 40,565.40, 60,905.70 and 25,013.40

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Solution

The fourth proportional to 40,565.40, 60,905.70 and 25,013.40 is: 37,555.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,565.40 : 60,905.70 = 25,013.40 : x
  2. Step 2: Convert to fraction form
    40,565.40/60,905.70 = 25,013.40/x
  3. Step 3: Cross multiply
    40,565.40x = 60,905.70 × 25,013.40
  4. Step 4: Simplify right side
    40,565.40x = 1,523,458,636.38
  5. Step 5: Solve for x
    x = 1,523,458,636.38/40,565.40
  6. Step 6: Final answer
    x = 37,555.62

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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.