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Finding the Fourth Proportional to 61,040.52, 84,225.42 and 38,392.92

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Solution

The fourth proportional to 61,040.52, 84,225.42 and 38,392.92 is: 52,975.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,040.52 : 84,225.42 = 38,392.92 : x
  2. Step 2: Convert to fraction form
    61,040.52/84,225.42 = 38,392.92/x
  3. Step 3: Cross multiply
    61,040.52x = 84,225.42 × 38,392.92
  4. Step 4: Simplify right side
    61,040.52x = 3,233,659,812.03
  5. Step 5: Solve for x
    x = 3,233,659,812.03/61,040.52
  6. Step 6: Final answer
    x = 52,975.63

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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.