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Finding the Fourth Proportional to 52,758.59, 72,806.85 and 28,885.26

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Solution

The fourth proportional to 52,758.59, 72,806.85 and 28,885.26 is: 39,861.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,758.59 : 72,806.85 = 28,885.26 : x
  2. Step 2: Convert to fraction form
    52,758.59/72,806.85 = 28,885.26/x
  3. Step 3: Cross multiply
    52,758.59x = 72,806.85 × 28,885.26
  4. Step 4: Simplify right side
    52,758.59x = 2,103,044,655.52
  5. Step 5: Solve for x
    x = 2,103,044,655.52/52,758.59
  6. Step 6: Final answer
    x = 39,861.65

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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.