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Finding the Fourth Proportional to 76,630.83, 105,799.13 and 52,472.22

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Solution

The fourth proportional to 76,630.83, 105,799.13 and 52,472.22 is: 72,444.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,630.83 : 105,799.13 = 52,472.22 : x
  2. Step 2: Convert to fraction form
    76,630.83/105,799.13 = 52,472.22/x
  3. Step 3: Cross multiply
    76,630.83x = 105,799.13 × 52,472.22
  4. Step 4: Simplify right side
    76,630.83x = 5,551,515,225.17
  5. Step 5: Solve for x
    x = 5,551,515,225.17/76,630.83
  6. Step 6: Final answer
    x = 72,444.93

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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.