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Finding the Fourth Proportional to 12,973.68, 17,901 and 8,256.24

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Solution

The fourth proportional to 12,973.68, 17,901 and 8,256.24 is: 11,391.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,973.68 : 17,901 = 8,256.24 : x
  2. Step 2: Convert to fraction form
    12,973.68/17,901 = 8,256.24/x
  3. Step 3: Cross multiply
    12,973.68x = 17,901 × 8,256.24
  4. Step 4: Simplify right side
    12,973.68x = 147,794,952.24
  5. Step 5: Solve for x
    x = 147,794,952.24/12,973.68
  6. Step 6: Final answer
    x = 11,391.91

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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.