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Finding the Fourth Proportional to 62,607.99, 86,348.75 and 55,038.27

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Solution

The fourth proportional to 62,607.99, 86,348.75 and 55,038.27 is: 75,908.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,607.99 : 86,348.75 = 55,038.27 : x
  2. Step 2: Convert to fraction form
    62,607.99/86,348.75 = 55,038.27/x
  3. Step 3: Cross multiply
    62,607.99x = 86,348.75 × 55,038.27
  4. Step 4: Simplify right side
    62,607.99x = 4,752,485,816.66
  5. Step 5: Solve for x
    x = 4,752,485,816.66/62,607.99
  6. Step 6: Final answer
    x = 75,908.62

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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.