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Finding the Fourth Proportional to 25,945.50, 38,855.90 and 14,818.50

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Solution

The fourth proportional to 25,945.50, 38,855.90 and 14,818.50 is: 22,192.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,945.50 : 38,855.90 = 14,818.50 : x
  2. Step 2: Convert to fraction form
    25,945.50/38,855.90 = 14,818.50/x
  3. Step 3: Cross multiply
    25,945.50x = 38,855.90 × 14,818.50
  4. Step 4: Simplify right side
    25,945.50x = 575,786,154.15
  5. Step 5: Solve for x
    x = 575,786,154.15/25,945.50
  6. Step 6: Final answer
    x = 22,192.14

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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.