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Finding the Fourth Proportional to 75,113.52, 112,662.96 and 19,709.52

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Solution

The fourth proportional to 75,113.52, 112,662.96 and 19,709.52 is: 29,562.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,113.52 : 112,662.96 = 19,709.52 : x
  2. Step 2: Convert to fraction form
    75,113.52/112,662.96 = 19,709.52/x
  3. Step 3: Cross multiply
    75,113.52x = 112,662.96 × 19,709.52
  4. Step 4: Simplify right side
    75,113.52x = 2,220,532,863.38
  5. Step 5: Solve for x
    x = 2,220,532,863.38/75,113.52
  6. Step 6: Final answer
    x = 29,562.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.