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Finding the Fourth Proportional to 70,440.19, 105,666.84 and 25,472.82

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Solution

The fourth proportional to 70,440.19, 105,666.84 and 25,472.82 is: 38,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,440.19 : 105,666.84 = 25,472.82 : x
  2. Step 2: Convert to fraction form
    70,440.19/105,666.84 = 25,472.82/x
  3. Step 3: Cross multiply
    70,440.19x = 105,666.84 × 25,472.82
  4. Step 4: Simplify right side
    70,440.19x = 2,691,632,395.29
  5. Step 5: Solve for x
    x = 2,691,632,395.29/70,440.19
  6. Step 6: Final answer
    x = 38,211.60

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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.