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Finding the Fourth Proportional to 8,713.49, 13,062.02 and 7,155.24

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Solution

The fourth proportional to 8,713.49, 13,062.02 and 7,155.24 is: 10,726.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713.49 : 13,062.02 = 7,155.24 : x
  2. Step 2: Convert to fraction form
    8,713.49/13,062.02 = 7,155.24/x
  3. Step 3: Cross multiply
    8,713.49x = 13,062.02 × 7,155.24
  4. Step 4: Simplify right side
    8,713.49x = 93,461,852.21
  5. Step 5: Solve for x
    x = 93,461,852.21/8,713.49
  6. Step 6: Final answer
    x = 10,726.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.