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Finding the Fourth Proportional to 58,686.67, 88,007.89 and 21,237.48

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Solution

The fourth proportional to 58,686.67, 88,007.89 and 21,237.48 is: 31,848.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,686.67 : 88,007.89 = 21,237.48 : x
  2. Step 2: Convert to fraction form
    58,686.67/88,007.89 = 21,237.48/x
  3. Step 3: Cross multiply
    58,686.67x = 88,007.89 × 21,237.48
  4. Step 4: Simplify right side
    58,686.67x = 1,869,065,257.49
  5. Step 5: Solve for x
    x = 1,869,065,257.49/58,686.67
  6. Step 6: Final answer
    x = 31,848.21

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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.