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Finding the Fourth Proportional to 27,867,805.80, 41,801,708.70 and 21,490,513.80

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Solution

The fourth proportional to 27,867,805.80, 41,801,708.70 and 21,490,513.80 is: 32,235,770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,867,805.80 : 41,801,708.70 = 21,490,513.80 : x
  2. Step 2: Convert to fraction form
    27,867,805.80/41,801,708.70 = 21,490,513.80/x
  3. Step 3: Cross multiply
    27,867,805.80x = 41,801,708.70 × 21,490,513.80
  4. Step 4: Simplify right side
    27,867,805.80x = 898,340,197,680,930.12
  5. Step 5: Solve for x
    x = 898,340,197,680,930.12/27,867,805.80
  6. Step 6: Final answer
    x = 32,235,770.70

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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.