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Finding the Fourth Proportional to 8,488.80, 11,557.49 and 8,462.48

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Solution

The fourth proportional to 8,488.80, 11,557.49 and 8,462.48 is: 11,521.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.80 : 11,557.49 = 8,462.48 : x
  2. Step 2: Convert to fraction form
    8,488.80/11,557.49 = 8,462.48/x
  3. Step 3: Cross multiply
    8,488.80x = 11,557.49 × 8,462.48
  4. Step 4: Simplify right side
    8,488.80x = 97,804,927.88
  5. Step 5: Solve for x
    x = 97,804,927.88/8,488.80
  6. Step 6: Final answer
    x = 11,521.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.