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Finding the Fourth Proportional to 58,941.90, 88,403.13 and 18,958.88

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Solution

The fourth proportional to 58,941.90, 88,403.13 and 18,958.88 is: 28,435.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,941.90 : 88,403.13 = 18,958.88 : x
  2. Step 2: Convert to fraction form
    58,941.90/88,403.13 = 18,958.88/x
  3. Step 3: Cross multiply
    58,941.90x = 88,403.13 × 18,958.88
  4. Step 4: Simplify right side
    58,941.90x = 1,676,024,554.30
  5. Step 5: Solve for x
    x = 1,676,024,554.30/58,941.90
  6. Step 6: Final answer
    x = 28,435.20

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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.