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Finding the Fourth Proportional to 61,728.50, 92,715.76 and 58,246.92

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Solution

The fourth proportional to 61,728.50, 92,715.76 and 58,246.92 is: 87,486.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,728.50 : 92,715.76 = 58,246.92 : x
  2. Step 2: Convert to fraction form
    61,728.50/92,715.76 = 58,246.92/x
  3. Step 3: Cross multiply
    61,728.50x = 92,715.76 × 58,246.92
  4. Step 4: Simplify right side
    61,728.50x = 5,400,407,455.46
  5. Step 5: Solve for x
    x = 5,400,407,455.46/61,728.50
  6. Step 6: Final answer
    x = 87,486.45

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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.