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Finding the Fourth Proportional to 16,722.74, 25,085.47 and 8,398.47

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Solution

The fourth proportional to 16,722.74, 25,085.47 and 8,398.47 is: 12,598.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,722.74 : 25,085.47 = 8,398.47 : x
  2. Step 2: Convert to fraction form
    16,722.74/25,085.47 = 8,398.47/x
  3. Step 3: Cross multiply
    16,722.74x = 25,085.47 × 8,398.47
  4. Step 4: Simplify right side
    16,722.74x = 210,679,441.80
  5. Step 5: Solve for x
    x = 210,679,441.80/16,722.74
  6. Step 6: Final answer
    x = 12,598.38

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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.