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Finding the Fourth Proportional to 61,221.96, 84,487.56 and 34,366.42

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Solution

The fourth proportional to 61,221.96, 84,487.56 and 34,366.42 is: 47,426.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,221.96 : 84,487.56 = 34,366.42 : x
  2. Step 2: Convert to fraction form
    61,221.96/84,487.56 = 34,366.42/x
  3. Step 3: Cross multiply
    61,221.96x = 84,487.56 × 34,366.42
  4. Step 4: Simplify right side
    61,221.96x = 2,903,534,971.74
  5. Step 5: Solve for x
    x = 2,903,534,971.74/61,221.96
  6. Step 6: Final answer
    x = 47,426.36

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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.