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Finding the Fourth Proportional to 8,488.80, 11,713.07 and 5,301.52

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Solution

The fourth proportional to 8,488.80, 11,713.07 and 5,301.52 is: 7,315.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.80 : 11,713.07 = 5,301.52 : x
  2. Step 2: Convert to fraction form
    8,488.80/11,713.07 = 5,301.52/x
  3. Step 3: Cross multiply
    8,488.80x = 11,713.07 × 5,301.52
  4. Step 4: Simplify right side
    8,488.80x = 62,097,058.84
  5. Step 5: Solve for x
    x = 62,097,058.84/8,488.80
  6. Step 6: Final answer
    x = 7,315.18

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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.