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Finding the Fourth Proportional to 61,712.01, 85,098.87 and 52,789.05

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Solution

The fourth proportional to 61,712.01, 85,098.87 and 52,789.05 is: 72,794.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,712.01 : 85,098.87 = 52,789.05 : x
  2. Step 2: Convert to fraction form
    61,712.01/85,098.87 = 52,789.05/x
  3. Step 3: Cross multiply
    61,712.01x = 85,098.87 × 52,789.05
  4. Step 4: Simplify right side
    61,712.01x = 4,492,288,503.37
  5. Step 5: Solve for x
    x = 4,492,288,503.37/61,712.01
  6. Step 6: Final answer
    x = 72,794.40

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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.