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Finding the Fourth Proportional to 25,859,356.49, 38,794,711.22 and 7,664,955.05

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Solution

The fourth proportional to 25,859,356.49, 38,794,711.22 and 7,664,955.05 is: 11,499,115.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,859,356.49 : 38,794,711.22 = 7,664,955.05 : x
  2. Step 2: Convert to fraction form
    25,859,356.49/38,794,711.22 = 7,664,955.05/x
  3. Step 3: Cross multiply
    25,859,356.49x = 38,794,711.22 × 7,664,955.05
  4. Step 4: Simplify right side
    25,859,356.49x = 297,359,717,679,030.62
  5. Step 5: Solve for x
    x = 297,359,717,679,030.62/25,859,356.49
  6. Step 6: Final answer
    x = 11,499,115.14

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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.