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Finding the Fourth Proportional to 10,966.78, 15,134.07 and 6,250.78

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Solution

The fourth proportional to 10,966.78, 15,134.07 and 6,250.78 is: 8,626.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,966.78 : 15,134.07 = 6,250.78 : x
  2. Step 2: Convert to fraction form
    10,966.78/15,134.07 = 6,250.78/x
  3. Step 3: Cross multiply
    10,966.78x = 15,134.07 × 6,250.78
  4. Step 4: Simplify right side
    10,966.78x = 94,599,742.07
  5. Step 5: Solve for x
    x = 94,599,742.07/10,966.78
  6. Step 6: Final answer
    x = 8,626.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.