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Finding the Fourth Proportional to 39,873,999.80, 59,810,999.70 and 22,820,648.60

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Solution

The fourth proportional to 39,873,999.80, 59,810,999.70 and 22,820,648.60 is: 34,230,972.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,873,999.80 : 59,810,999.70 = 22,820,648.60 : x
  2. Step 2: Convert to fraction form
    39,873,999.80/59,810,999.70 = 22,820,648.60/x
  3. Step 3: Cross multiply
    39,873,999.80x = 59,810,999.70 × 22,820,648.60
  4. Step 4: Simplify right side
    39,873,999.80x = 1,364,925,806,568,405.50
  5. Step 5: Solve for x
    x = 1,364,925,806,568,405.50/39,873,999.80
  6. Step 6: Final answer
    x = 34,230,972.90

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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.