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Finding the Fourth Proportional to 60,813.70, 91,416.69 and 56,391.85

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Solution

The fourth proportional to 60,813.70, 91,416.69 and 56,391.85 is: 84,769.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,813.70 : 91,416.69 = 56,391.85 : x
  2. Step 2: Convert to fraction form
    60,813.70/91,416.69 = 56,391.85/x
  3. Step 3: Cross multiply
    60,813.70x = 91,416.69 × 56,391.85
  4. Step 4: Simplify right side
    60,813.70x = 5,155,156,269.98
  5. Step 5: Solve for x
    x = 5,155,156,269.98/60,813.70
  6. Step 6: Final answer
    x = 84,769.65

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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.