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Finding the Fourth Proportional to 12,756,490.65, 19,134,735.98 and 12,756,490.65

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Solution

The fourth proportional to 12,756,490.65, 19,134,735.98 and 12,756,490.65 is: 19,134,735.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756,490.65 : 19,134,735.98 = 12,756,490.65 : x
  2. Step 2: Convert to fraction form
    12,756,490.65/19,134,735.98 = 12,756,490.65/x
  3. Step 3: Cross multiply
    12,756,490.65x = 19,134,735.98 × 12,756,490.65
  4. Step 4: Simplify right side
    12,756,490.65x = 244,092,080,555,306.16
  5. Step 5: Solve for x
    x = 244,092,080,555,306.16/12,756,490.65
  6. Step 6: Final answer
    x = 19,134,735.98

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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.