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Finding the Fourth Proportional to 10,526.26, 15,774.36 and 7,731.01

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Solution

The fourth proportional to 10,526.26, 15,774.36 and 7,731.01 is: 11,585.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,526.26 : 15,774.36 = 7,731.01 : x
  2. Step 2: Convert to fraction form
    10,526.26/15,774.36 = 7,731.01/x
  3. Step 3: Cross multiply
    10,526.26x = 15,774.36 × 7,731.01
  4. Step 4: Simplify right side
    10,526.26x = 121,951,734.90
  5. Step 5: Solve for x
    x = 121,951,734.90/10,526.26
  6. Step 6: Final answer
    x = 11,585.48

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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.