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Finding the Fourth Proportional to 45,393.60, 62,644.95 and 27,478.47

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Solution

The fourth proportional to 45,393.60, 62,644.95 and 27,478.47 is: 37,921.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,393.60 : 62,644.95 = 27,478.47 : x
  2. Step 2: Convert to fraction form
    45,393.60/62,644.95 = 27,478.47/x
  3. Step 3: Cross multiply
    45,393.60x = 62,644.95 × 27,478.47
  4. Step 4: Simplify right side
    45,393.60x = 1,721,387,379.23
  5. Step 5: Solve for x
    x = 1,721,387,379.23/45,393.60
  6. Step 6: Final answer
    x = 37,921.37

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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.