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Finding the Fourth Proportional to 34,970.92, 52,455.95 and 20,934.86

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Solution

The fourth proportional to 34,970.92, 52,455.95 and 20,934.86 is: 31,402.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,970.92 : 52,455.95 = 20,934.86 : x
  2. Step 2: Convert to fraction form
    34,970.92/52,455.95 = 20,934.86/x
  3. Step 3: Cross multiply
    34,970.92x = 52,455.95 × 20,934.86
  4. Step 4: Simplify right side
    34,970.92x = 1,098,157,969.42
  5. Step 5: Solve for x
    x = 1,098,157,969.42/34,970.92
  6. Step 6: Final answer
    x = 31,402.03

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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.