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Finding the Fourth Proportional to 61,096.80, 91,646.88 and 19,543.84

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Solution

The fourth proportional to 61,096.80, 91,646.88 and 19,543.84 is: 29,316.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,096.80 : 91,646.88 = 19,543.84 : x
  2. Step 2: Convert to fraction form
    61,096.80/91,646.88 = 19,543.84/x
  3. Step 3: Cross multiply
    61,096.80x = 91,646.88 × 19,543.84
  4. Step 4: Simplify right side
    61,096.80x = 1,791,131,959.22
  5. Step 5: Solve for x
    x = 1,791,131,959.22/61,096.80
  6. Step 6: Final answer
    x = 29,316.30

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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.