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Finding the Fourth Proportional to 18,010,684.80, 24,854,496.84 and 9,861,922.80

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Solution

The fourth proportional to 18,010,684.80, 24,854,496.84 and 9,861,922.80 is: 13,609,317.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,010,684.80 : 24,854,496.84 = 9,861,922.80 : x
  2. Step 2: Convert to fraction form
    18,010,684.80/24,854,496.84 = 9,861,922.80/x
  3. Step 3: Cross multiply
    18,010,684.80x = 24,854,496.84 × 9,861,922.80
  4. Step 4: Simplify right side
    18,010,684.80x = 245,113,129,068,923.97
  5. Step 5: Solve for x
    x = 245,113,129,068,923.97/18,010,684.80
  6. Step 6: Final answer
    x = 13,609,317.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.