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Finding the Fourth Proportional to 66,013.92, 91,119.33 and 52,676.87

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Solution

The fourth proportional to 66,013.92, 91,119.33 and 52,676.87 is: 72,710.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,013.92 : 91,119.33 = 52,676.87 : x
  2. Step 2: Convert to fraction form
    66,013.92/91,119.33 = 52,676.87/x
  3. Step 3: Cross multiply
    66,013.92x = 91,119.33 × 52,676.87
  4. Step 4: Simplify right side
    66,013.92x = 4,799,880,645.30
  5. Step 5: Solve for x
    x = 4,799,880,645.30/66,013.92
  6. Step 6: Final answer
    x = 72,710.13

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1.5x scale

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.