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Finding the Fourth Proportional to 25,879,604.40, 38,819,406.60 and 25,711,642.80

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Solution

The fourth proportional to 25,879,604.40, 38,819,406.60 and 25,711,642.80 is: 38,567,464.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,879,604.40 : 38,819,406.60 = 25,711,642.80 : x
  2. Step 2: Convert to fraction form
    25,879,604.40/38,819,406.60 = 25,711,642.80/x
  3. Step 3: Cross multiply
    25,879,604.40x = 38,819,406.60 × 25,711,642.80
  4. Step 4: Simplify right side
    25,879,604.40x = 998,110,716,207,162.50
  5. Step 5: Solve for x
    x = 998,110,716,207,162.50/25,879,604.40
  6. Step 6: Final answer
    x = 38,567,464.20

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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.