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Finding the Fourth Proportional to 52,776.60, 72,865.68 and 47,101.56

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Solution

The fourth proportional to 52,776.60, 72,865.68 and 47,101.56 is: 65,030.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,776.60 : 72,865.68 = 47,101.56 : x
  2. Step 2: Convert to fraction form
    52,776.60/72,865.68 = 47,101.56/x
  3. Step 3: Cross multiply
    52,776.60x = 72,865.68 × 47,101.56
  4. Step 4: Simplify right side
    52,776.60x = 3,432,087,198.46
  5. Step 5: Solve for x
    x = 3,432,087,198.46/52,776.60
  6. Step 6: Final answer
    x = 65,030.47

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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.