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Finding the Fourth Proportional to 61,686.55, 92,530.36 and 14,939.47

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Solution

The fourth proportional to 61,686.55, 92,530.36 and 14,939.47 is: 22,409.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,686.55 : 92,530.36 = 14,939.47 : x
  2. Step 2: Convert to fraction form
    61,686.55/92,530.36 = 14,939.47/x
  3. Step 3: Cross multiply
    61,686.55x = 92,530.36 × 14,939.47
  4. Step 4: Simplify right side
    61,686.55x = 1,382,354,074.66
  5. Step 5: Solve for x
    x = 1,382,354,074.66/61,686.55
  6. Step 6: Final answer
    x = 22,409.33

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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.