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Finding the Fourth Proportional to 61,346.60, 91,982.72 and 40,015.25

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Solution

The fourth proportional to 61,346.60, 91,982.72 and 40,015.25 is: 59,998.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,346.60 : 91,982.72 = 40,015.25 : x
  2. Step 2: Convert to fraction form
    61,346.60/91,982.72 = 40,015.25/x
  3. Step 3: Cross multiply
    61,346.60x = 91,982.72 × 40,015.25
  4. Step 4: Simplify right side
    61,346.60x = 3,680,710,876.49
  5. Step 5: Solve for x
    x = 3,680,710,876.49/61,346.60
  6. Step 6: Final answer
    x = 59,998.62

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1.5x scale

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.