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Finding the Fourth Proportional to 60,039.80, 89,985.88 and 33,689.18

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Solution

The fourth proportional to 60,039.80, 89,985.88 and 33,689.18 is: 50,492.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,039.80 : 89,985.88 = 33,689.18 : x
  2. Step 2: Convert to fraction form
    60,039.80/89,985.88 = 33,689.18/x
  3. Step 3: Cross multiply
    60,039.80x = 89,985.88 × 33,689.18
  4. Step 4: Simplify right side
    60,039.80x = 3,031,549,890.40
  5. Step 5: Solve for x
    x = 3,031,549,890.40/60,039.80
  6. Step 6: Final answer
    x = 50,492.34

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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.