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Finding the Fourth Proportional to 15,695,598.20, 21,923,449 and 15,695,598.20

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Solution

The fourth proportional to 15,695,598.20, 21,923,449 and 15,695,598.20 is: 21,923,449

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,695,598.20 : 21,923,449 = 15,695,598.20 : x
  2. Step 2: Convert to fraction form
    15,695,598.20/21,923,449 = 15,695,598.20/x
  3. Step 3: Cross multiply
    15,695,598.20x = 21,923,449 × 15,695,598.20
  4. Step 4: Simplify right side
    15,695,598.20x = 344,101,646,662,191.81
  5. Step 5: Solve for x
    x = 344,101,646,662,191.81/15,695,598.20
  6. Step 6: Final answer
    x = 21,923,449

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.