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Finding the Fourth Proportional to 61,716.51, 85,105.08 and 52,793.55

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Solution

The fourth proportional to 61,716.51, 85,105.08 and 52,793.55 is: 72,800.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,716.51 : 85,105.08 = 52,793.55 : x
  2. Step 2: Convert to fraction form
    61,716.51/85,105.08 = 52,793.55/x
  3. Step 3: Cross multiply
    61,716.51x = 85,105.08 × 52,793.55
  4. Step 4: Simplify right side
    61,716.51x = 4,492,999,296.23
  5. Step 5: Solve for x
    x = 4,492,999,296.23/61,716.51
  6. Step 6: Final answer
    x = 72,800.61

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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.