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Finding the Fourth Proportional to 76,008.76, 104,891.34 and 42,474.76

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Solution

The fourth proportional to 76,008.76, 104,891.34 and 42,474.76 is: 58,614.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,008.76 : 104,891.34 = 42,474.76 : x
  2. Step 2: Convert to fraction form
    76,008.76/104,891.34 = 42,474.76/x
  3. Step 3: Cross multiply
    76,008.76x = 104,891.34 × 42,474.76
  4. Step 4: Simplify right side
    76,008.76x = 4,455,234,492.58
  5. Step 5: Solve for x
    x = 4,455,234,492.58/76,008.76
  6. Step 6: Final answer
    x = 58,614.75

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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.