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Finding the Fourth Proportional to 61,884.40, 85,401.47 and 33,590.08

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Solution

The fourth proportional to 61,884.40, 85,401.47 and 33,590.08 is: 46,354.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,884.40 : 85,401.47 = 33,590.08 : x
  2. Step 2: Convert to fraction form
    61,884.40/85,401.47 = 33,590.08/x
  3. Step 3: Cross multiply
    61,884.40x = 85,401.47 × 33,590.08
  4. Step 4: Simplify right side
    61,884.40x = 2,868,642,209.42
  5. Step 5: Solve for x
    x = 2,868,642,209.42/61,884.40
  6. Step 6: Final answer
    x = 46,354.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.