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Finding the Fourth Proportional to 70,902.32, 106,253.17 and 39,326.27

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Solution

The fourth proportional to 70,902.32, 106,253.17 and 39,326.27 is: 58,933.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,902.32 : 106,253.17 = 39,326.27 : x
  2. Step 2: Convert to fraction form
    70,902.32/106,253.17 = 39,326.27/x
  3. Step 3: Cross multiply
    70,902.32x = 106,253.17 × 39,326.27
  4. Step 4: Simplify right side
    70,902.32x = 4,178,540,851.78
  5. Step 5: Solve for x
    x = 4,178,540,851.78/70,902.32
  6. Step 6: Final answer
    x = 58,933.77

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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.