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Finding the Fourth Proportional to 10,345.56, 15,512.48 and 7,062.64

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Solution

The fourth proportional to 10,345.56, 15,512.48 and 7,062.64 is: 10,589.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.56 : 15,512.48 = 7,062.64 : x
  2. Step 2: Convert to fraction form
    10,345.56/15,512.48 = 7,062.64/x
  3. Step 3: Cross multiply
    10,345.56x = 15,512.48 × 7,062.64
  4. Step 4: Simplify right side
    10,345.56x = 109,559,061.75
  5. Step 5: Solve for x
    x = 109,559,061.75/10,345.56
  6. Step 6: Final answer
    x = 10,589.96

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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.