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Finding the Fourth Proportional to 71,466.84, 107,264.52 and 38,215.33

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Solution

The fourth proportional to 71,466.84, 107,264.52 and 38,215.33 is: 57,357.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,466.84 : 107,264.52 = 38,215.33 : x
  2. Step 2: Convert to fraction form
    71,466.84/107,264.52 = 38,215.33/x
  3. Step 3: Cross multiply
    71,466.84x = 107,264.52 × 38,215.33
  4. Step 4: Simplify right side
    71,466.84x = 4,099,148,760.93
  5. Step 5: Solve for x
    x = 4,099,148,760.93/71,466.84
  6. Step 6: Final answer
    x = 57,357.35

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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.