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Finding the Fourth Proportional to 12,773,060.40, 19,164,839.40 and 4,689,908.40

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Solution

The fourth proportional to 12,773,060.40, 19,164,839.40 and 4,689,908.40 is: 7,036,789.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,773,060.40 : 19,164,839.40 = 4,689,908.40 : x
  2. Step 2: Convert to fraction form
    12,773,060.40/19,164,839.40 = 4,689,908.40/x
  3. Step 3: Cross multiply
    12,773,060.40x = 19,164,839.40 × 4,689,908.40
  4. Step 4: Simplify right side
    12,773,060.40x = 89,881,341,286,710.95
  5. Step 5: Solve for x
    x = 89,881,341,286,710.95/12,773,060.40
  6. Step 6: Final answer
    x = 7,036,789.81

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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.