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Finding the Fourth Proportional to 16,986.84, 25,470.54 and 7,117.80

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Solution

The fourth proportional to 16,986.84, 25,470.54 and 7,117.80 is: 10,672.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,986.84 : 25,470.54 = 7,117.80 : x
  2. Step 2: Convert to fraction form
    16,986.84/25,470.54 = 7,117.80/x
  3. Step 3: Cross multiply
    16,986.84x = 25,470.54 × 7,117.80
  4. Step 4: Simplify right side
    16,986.84x = 181,294,209.61
  5. Step 5: Solve for x
    x = 181,294,209.61/16,986.84
  6. Step 6: Final answer
    x = 10,672.63

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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.