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Finding the Fourth Proportional to 14,358.37, 21,540.14 and 5,920.18

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Solution

The fourth proportional to 14,358.37, 21,540.14 and 5,920.18 is: 8,881.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,358.37 : 21,540.14 = 5,920.18 : x
  2. Step 2: Convert to fraction form
    14,358.37/21,540.14 = 5,920.18/x
  3. Step 3: Cross multiply
    14,358.37x = 21,540.14 × 5,920.18
  4. Step 4: Simplify right side
    14,358.37x = 127,521,422.57
  5. Step 5: Solve for x
    x = 127,521,422.57/14,358.37
  6. Step 6: Final answer
    x = 8,881.33

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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.