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Finding the Fourth Proportional to 8,366.55, 11,547.36 and 5,712.99

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Solution

The fourth proportional to 8,366.55, 11,547.36 and 5,712.99 is: 7,884.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,366.55 : 11,547.36 = 5,712.99 : x
  2. Step 2: Convert to fraction form
    8,366.55/11,547.36 = 5,712.99/x
  3. Step 3: Cross multiply
    8,366.55x = 11,547.36 × 5,712.99
  4. Step 4: Simplify right side
    8,366.55x = 65,969,952.21
  5. Step 5: Solve for x
    x = 65,969,952.21/8,366.55
  6. Step 6: Final answer
    x = 7,884.96

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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.