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Finding the Fourth Proportional to 61,575.96, 84,849.28 and 42,461.56

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Solution

The fourth proportional to 61,575.96, 84,849.28 and 42,461.56 is: 58,510.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,575.96 : 84,849.28 = 42,461.56 : x
  2. Step 2: Convert to fraction form
    61,575.96/84,849.28 = 42,461.56/x
  3. Step 3: Cross multiply
    61,575.96x = 84,849.28 × 42,461.56
  4. Step 4: Simplify right side
    61,575.96x = 3,602,832,793.68
  5. Step 5: Solve for x
    x = 3,602,832,793.68/61,575.96
  6. Step 6: Final answer
    x = 58,510.38

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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.