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Finding the Fourth Proportional to 62,687.52, 86,484.80 and 40,027.36

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Solution

The fourth proportional to 62,687.52, 86,484.80 and 40,027.36 is: 55,222.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,687.52 : 86,484.80 = 40,027.36 : x
  2. Step 2: Convert to fraction form
    62,687.52/86,484.80 = 40,027.36/x
  3. Step 3: Cross multiply
    62,687.52x = 86,484.80 × 40,027.36
  4. Step 4: Simplify right side
    62,687.52x = 3,461,758,224.13
  5. Step 5: Solve for x
    x = 3,461,758,224.13/62,687.52
  6. Step 6: Final answer
    x = 55,222.45

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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.