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Finding the Fourth Proportional to 25,746,620.40, 38,644,813.80 and 15,668,924.40

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Solution

The fourth proportional to 25,746,620.40, 38,644,813.80 and 15,668,924.40 is: 23,518,530.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,746,620.40 : 38,644,813.80 = 15,668,924.40 : x
  2. Step 2: Convert to fraction form
    25,746,620.40/38,644,813.80 = 15,668,924.40/x
  3. Step 3: Cross multiply
    25,746,620.40x = 38,644,813.80 × 15,668,924.40
  4. Step 4: Simplify right side
    25,746,620.40x = 605,522,665,884,276.75
  5. Step 5: Solve for x
    x = 605,522,665,884,276.75/25,746,620.40
  6. Step 6: Final answer
    x = 23,518,530.06

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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.