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Finding the Fourth Proportional to 52,061.87, 78,123.90 and 47,826.92

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Solution

The fourth proportional to 52,061.87, 78,123.90 and 47,826.92 is: 71,768.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,061.87 : 78,123.90 = 47,826.92 : x
  2. Step 2: Convert to fraction form
    52,061.87/78,123.90 = 47,826.92/x
  3. Step 3: Cross multiply
    52,061.87x = 78,123.90 × 47,826.92
  4. Step 4: Simplify right side
    52,061.87x = 3,736,425,515.39
  5. Step 5: Solve for x
    x = 3,736,425,515.39/52,061.87
  6. Step 6: Final answer
    x = 71,768.95

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1.5x scale

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.