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Finding the Fourth Proportional to 15,170.10, 22,750.68 and 5,307.54

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Solution

The fourth proportional to 15,170.10, 22,750.68 and 5,307.54 is: 7,959.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,170.10 : 22,750.68 = 5,307.54 : x
  2. Step 2: Convert to fraction form
    15,170.10/22,750.68 = 5,307.54/x
  3. Step 3: Cross multiply
    15,170.10x = 22,750.68 × 5,307.54
  4. Step 4: Simplify right side
    15,170.10x = 120,750,144.13
  5. Step 5: Solve for x
    x = 120,750,144.13/15,170.10
  6. Step 6: Final answer
    x = 7,959.75

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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.