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Finding the Fourth Proportional to 60,063.62, 82,890.12 and 39,885.70

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Solution

The fourth proportional to 60,063.62, 82,890.12 and 39,885.70 is: 55,043.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,063.62 : 82,890.12 = 39,885.70 : x
  2. Step 2: Convert to fraction form
    60,063.62/82,890.12 = 39,885.70/x
  3. Step 3: Cross multiply
    60,063.62x = 82,890.12 × 39,885.70
  4. Step 4: Simplify right side
    60,063.62x = 3,306,130,459.28
  5. Step 5: Solve for x
    x = 3,306,130,459.28/60,063.62
  6. Step 6: Final answer
    x = 55,043.81

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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.