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Finding the Fourth Proportional to 10,781.74, 14,879.28 and 6,066.02

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Solution

The fourth proportional to 10,781.74, 14,879.28 and 6,066.02 is: 8,371.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781.74 : 14,879.28 = 6,066.02 : x
  2. Step 2: Convert to fraction form
    10,781.74/14,879.28 = 6,066.02/x
  3. Step 3: Cross multiply
    10,781.74x = 14,879.28 × 6,066.02
  4. Step 4: Simplify right side
    10,781.74x = 90,258,010.07
  5. Step 5: Solve for x
    x = 90,258,010.07/10,781.74
  6. Step 6: Final answer
    x = 8,371.38

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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.