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Finding the Fourth Proportional to 70,200.81, 96,877.35 and 38,369.70

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Solution

The fourth proportional to 70,200.81, 96,877.35 and 38,369.70 is: 52,950.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,200.81 : 96,877.35 = 38,369.70 : x
  2. Step 2: Convert to fraction form
    70,200.81/96,877.35 = 38,369.70/x
  3. Step 3: Cross multiply
    70,200.81x = 96,877.35 × 38,369.70
  4. Step 4: Simplify right side
    70,200.81x = 3,717,154,856.30
  5. Step 5: Solve for x
    x = 3,717,154,856.30/70,200.81
  6. Step 6: Final answer
    x = 52,950.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.