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Finding the Fourth Proportional to 70,641.64, 105,934.65 and 25,652.35

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Solution

The fourth proportional to 70,641.64, 105,934.65 and 25,652.35 is: 38,468.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,641.64 : 105,934.65 = 25,652.35 : x
  2. Step 2: Convert to fraction form
    70,641.64/105,934.65 = 25,652.35/x
  3. Step 3: Cross multiply
    70,641.64x = 105,934.65 × 25,652.35
  4. Step 4: Simplify right side
    70,641.64x = 2,717,472,718.93
  5. Step 5: Solve for x
    x = 2,717,472,718.93/70,641.64
  6. Step 6: Final answer
    x = 38,468.43

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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.