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Finding the Fourth Proportional to 61,689.62, 92,534.74 and 22,218.53

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Solution

The fourth proportional to 61,689.62, 92,534.74 and 22,218.53 is: 33,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,689.62 : 92,534.74 = 22,218.53 : x
  2. Step 2: Convert to fraction form
    61,689.62/92,534.74 = 22,218.53/x
  3. Step 3: Cross multiply
    61,689.62x = 92,534.74 × 22,218.53
  4. Step 4: Simplify right side
    61,689.62x = 2,055,985,378.51
  5. Step 5: Solve for x
    x = 2,055,985,378.51/61,689.62
  6. Step 6: Final answer
    x = 33,327.90

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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.