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Finding the Fourth Proportional to 12,398.49, 18,573.06 and 9,073.74

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Solution

The fourth proportional to 12,398.49, 18,573.06 and 9,073.74 is: 13,592.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,398.49 : 18,573.06 = 9,073.74 : x
  2. Step 2: Convert to fraction form
    12,398.49/18,573.06 = 9,073.74/x
  3. Step 3: Cross multiply
    12,398.49x = 18,573.06 × 9,073.74
  4. Step 4: Simplify right side
    12,398.49x = 168,527,117.44
  5. Step 5: Solve for x
    x = 168,527,117.44/12,398.49
  6. Step 6: Final answer
    x = 13,592.55

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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.