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Finding the Fourth Proportional to 61,482.42, 92,209.05 and 28,181.70

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Solution

The fourth proportional to 61,482.42, 92,209.05 and 28,181.70 is: 42,265.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,482.42 : 92,209.05 = 28,181.70 : x
  2. Step 2: Convert to fraction form
    61,482.42/92,209.05 = 28,181.70/x
  3. Step 3: Cross multiply
    61,482.42x = 92,209.05 × 28,181.70
  4. Step 4: Simplify right side
    61,482.42x = 2,598,607,784.39
  5. Step 5: Solve for x
    x = 2,598,607,784.39/61,482.42
  6. Step 6: Final answer
    x = 42,265.87

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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.