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Finding the Fourth Proportional to 66,811.20, 100,207.53 and 16,888.27

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Solution

The fourth proportional to 66,811.20, 100,207.53 and 16,888.27 is: 25,330.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,811.20 : 100,207.53 = 16,888.27 : x
  2. Step 2: Convert to fraction form
    66,811.20/100,207.53 = 16,888.27/x
  3. Step 3: Cross multiply
    66,811.20x = 100,207.53 × 16,888.27
  4. Step 4: Simplify right side
    66,811.20x = 1,692,331,822.67
  5. Step 5: Solve for x
    x = 1,692,331,822.67/66,811.20
  6. Step 6: Final answer
    x = 25,330.06

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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.