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Finding the Fourth Proportional to 52,793.92, 79,106.64 and 38,688.58

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Solution

The fourth proportional to 52,793.92, 79,106.64 and 38,688.58 is: 57,971.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,793.92 : 79,106.64 = 38,688.58 : x
  2. Step 2: Convert to fraction form
    52,793.92/79,106.64 = 38,688.58/x
  3. Step 3: Cross multiply
    52,793.92x = 79,106.64 × 38,688.58
  4. Step 4: Simplify right side
    52,793.92x = 3,060,523,570.17
  5. Step 5: Solve for x
    x = 3,060,523,570.17/52,793.92
  6. Step 6: Final answer
    x = 57,971.14

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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.