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Finding the Fourth Proportional to 62,983.41, 86,888.99 and 42,558.87

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Solution

The fourth proportional to 62,983.41, 86,888.99 and 42,558.87 is: 58,712.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,983.41 : 86,888.99 = 42,558.87 : x
  2. Step 2: Convert to fraction form
    62,983.41/86,888.99 = 42,558.87/x
  3. Step 3: Cross multiply
    62,983.41x = 86,888.99 × 42,558.87
  4. Step 4: Simplify right side
    62,983.41x = 3,697,897,017.05
  5. Step 5: Solve for x
    x = 3,697,897,017.05/62,983.41
  6. Step 6: Final answer
    x = 58,712.24

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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.