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Finding the Fourth Proportional to 83,607.34, 125,415.20 and 27,424.72

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Solution

The fourth proportional to 83,607.34, 125,415.20 and 27,424.72 is: 41,138.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,607.34 : 125,415.20 = 27,424.72 : x
  2. Step 2: Convert to fraction form
    83,607.34/125,415.20 = 27,424.72/x
  3. Step 3: Cross multiply
    83,607.34x = 125,415.20 × 27,424.72
  4. Step 4: Simplify right side
    83,607.34x = 3,439,476,743.74
  5. Step 5: Solve for x
    x = 3,439,476,743.74/83,607.34
  6. Step 6: Final answer
    x = 41,138.45

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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.