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Finding the Fourth Proportional to 61,281.12, 84,566.04 and 34,426.56

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Solution

The fourth proportional to 61,281.12, 84,566.04 and 34,426.56 is: 47,507.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,281.12 : 84,566.04 = 34,426.56 : x
  2. Step 2: Convert to fraction form
    61,281.12/84,566.04 = 34,426.56/x
  3. Step 3: Cross multiply
    61,281.12x = 84,566.04 × 34,426.56
  4. Step 4: Simplify right side
    61,281.12x = 2,911,317,850.02
  5. Step 5: Solve for x
    x = 2,911,317,850.02/61,281.12
  6. Step 6: Final answer
    x = 47,507.58

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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.