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Finding the Fourth Proportional to 25,697.52, 38,518.65 and 16,809.48

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Solution

The fourth proportional to 25,697.52, 38,518.65 and 16,809.48 is: 25,196.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,697.52 : 38,518.65 = 16,809.48 : x
  2. Step 2: Convert to fraction form
    25,697.52/38,518.65 = 16,809.48/x
  3. Step 3: Cross multiply
    25,697.52x = 38,518.65 × 16,809.48
  4. Step 4: Simplify right side
    25,697.52x = 647,478,476.80
  5. Step 5: Solve for x
    x = 647,478,476.80/25,697.52
  6. Step 6: Final answer
    x = 25,196.15

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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.