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Finding the Fourth Proportional to 5,966.79, 8,911.17 and 5,079.84

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Solution

The fourth proportional to 5,966.79, 8,911.17 and 5,079.84 is: 7,586.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,966.79 : 8,911.17 = 5,079.84 : x
  2. Step 2: Convert to fraction form
    5,966.79/8,911.17 = 5,079.84/x
  3. Step 3: Cross multiply
    5,966.79x = 8,911.17 × 5,079.84
  4. Step 4: Simplify right side
    5,966.79x = 45,267,317.81
  5. Step 5: Solve for x
    x = 45,267,317.81/5,966.79
  6. Step 6: Final answer
    x = 7,586.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.