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Finding the Fourth Proportional to 10,376.60, 15,560.84 and 4,828.90

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Solution

The fourth proportional to 10,376.60, 15,560.84 and 4,828.90 is: 7,241.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,376.60 : 15,560.84 = 4,828.90 : x
  2. Step 2: Convert to fraction form
    10,376.60/15,560.84 = 4,828.90/x
  3. Step 3: Cross multiply
    10,376.60x = 15,560.84 × 4,828.90
  4. Step 4: Simplify right side
    10,376.60x = 75,141,740.28
  5. Step 5: Solve for x
    x = 75,141,740.28/10,376.60
  6. Step 6: Final answer
    x = 7,241.46

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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.