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Finding the Fourth Proportional to 58,991.90, 88,486.76 and 14,618.76

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Solution

The fourth proportional to 58,991.90, 88,486.76 and 14,618.76 is: 21,927.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,991.90 : 88,486.76 = 14,618.76 : x
  2. Step 2: Convert to fraction form
    58,991.90/88,486.76 = 14,618.76/x
  3. Step 3: Cross multiply
    58,991.90x = 88,486.76 × 14,618.76
  4. Step 4: Simplify right side
    58,991.90x = 1,293,566,707.62
  5. Step 5: Solve for x
    x = 1,293,566,707.62/58,991.90
  6. Step 6: Final answer
    x = 21,927.87

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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.