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Finding the Fourth Proportional to 15,859,595.88, 21,885,503.40 and 8,984,134.44

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Solution

The fourth proportional to 15,859,595.88, 21,885,503.40 and 8,984,134.44 is: 12,397,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,859,595.88 : 21,885,503.40 = 8,984,134.44 : x
  2. Step 2: Convert to fraction form
    15,859,595.88/21,885,503.40 = 8,984,134.44/x
  3. Step 3: Cross multiply
    15,859,595.88x = 21,885,503.40 × 8,984,134.44
  4. Step 4: Simplify right side
    15,859,595.88x = 196,622,304,832,677.06
  5. Step 5: Solve for x
    x = 196,622,304,832,677.06/15,859,595.88
  6. Step 6: Final answer
    x = 12,397,686.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.