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Finding the Fourth Proportional to 61,628.91, 92,443.37 and 14,881.78

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Solution

The fourth proportional to 61,628.91, 92,443.37 and 14,881.78 is: 22,322.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,628.91 : 92,443.37 = 14,881.78 : x
  2. Step 2: Convert to fraction form
    61,628.91/92,443.37 = 14,881.78/x
  3. Step 3: Cross multiply
    61,628.91x = 92,443.37 × 14,881.78
  4. Step 4: Simplify right side
    61,628.91x = 1,375,722,237.80
  5. Step 5: Solve for x
    x = 1,375,722,237.80/61,628.91
  6. Step 6: Final answer
    x = 22,322.68

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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.