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Finding the Fourth Proportional to 8,559.17, 11,806.86 and 5,021.70

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Solution

The fourth proportional to 8,559.17, 11,806.86 and 5,021.70 is: 6,927.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.17 : 11,806.86 = 5,021.70 : x
  2. Step 2: Convert to fraction form
    8,559.17/11,806.86 = 5,021.70/x
  3. Step 3: Cross multiply
    8,559.17x = 11,806.86 × 5,021.70
  4. Step 4: Simplify right side
    8,559.17x = 59,290,483.42
  5. Step 5: Solve for x
    x = 59,290,483.42/8,559.17
  6. Step 6: Final answer
    x = 6,927.13

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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.