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Finding the Fourth Proportional to 29,970.48, 41,371.08 and 18,031.48

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Solution

The fourth proportional to 29,970.48, 41,371.08 and 18,031.48 is: 24,890.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,970.48 : 41,371.08 = 18,031.48 : x
  2. Step 2: Convert to fraction form
    29,970.48/41,371.08 = 18,031.48/x
  3. Step 3: Cross multiply
    29,970.48x = 41,371.08 × 18,031.48
  4. Step 4: Simplify right side
    29,970.48x = 745,981,801.60
  5. Step 5: Solve for x
    x = 745,981,801.60/29,970.48
  6. Step 6: Final answer
    x = 24,890.55

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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.