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Finding the Fourth Proportional to 10,295.76, 15,422.96 and 4,741.40

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Solution

The fourth proportional to 10,295.76, 15,422.96 and 4,741.40 is: 7,102.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,295.76 : 15,422.96 = 4,741.40 : x
  2. Step 2: Convert to fraction form
    10,295.76/15,422.96 = 4,741.40/x
  3. Step 3: Cross multiply
    10,295.76x = 15,422.96 × 4,741.40
  4. Step 4: Simplify right side
    10,295.76x = 73,126,422.54
  5. Step 5: Solve for x
    x = 73,126,422.54/10,295.76
  6. Step 6: Final answer
    x = 7,102.58

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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.