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Finding the Fourth Proportional to 5,061.74, 6,986.09 and 3,864.76

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Solution

The fourth proportional to 5,061.74, 6,986.09 and 3,864.76 is: 5,334.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,061.74 : 6,986.09 = 3,864.76 : x
  2. Step 2: Convert to fraction form
    5,061.74/6,986.09 = 3,864.76/x
  3. Step 3: Cross multiply
    5,061.74x = 6,986.09 × 3,864.76
  4. Step 4: Simplify right side
    5,061.74x = 26,999,553.39
  5. Step 5: Solve for x
    x = 26,999,553.39/5,061.74
  6. Step 6: Final answer
    x = 5,334.05

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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.