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Finding the Fourth Proportional to 61,346.70, 91,987.65 and 26,246.70

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Solution

The fourth proportional to 61,346.70, 91,987.65 and 26,246.70 is: 39,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,346.70 : 91,987.65 = 26,246.70 : x
  2. Step 2: Convert to fraction form
    61,346.70/91,987.65 = 26,246.70/x
  3. Step 3: Cross multiply
    61,346.70x = 91,987.65 × 26,246.70
  4. Step 4: Simplify right side
    61,346.70x = 2,414,372,253.26
  5. Step 5: Solve for x
    x = 2,414,372,253.26/61,346.70
  6. Step 6: Final answer
    x = 39,356.19

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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.