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Finding the Fourth Proportional to 19,956,879.68, 29,935,319.51 and 19,956,879.68

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Solution

The fourth proportional to 19,956,879.68, 29,935,319.51 and 19,956,879.68 is: 29,935,319.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,956,879.68 : 29,935,319.51 = 19,956,879.68 : x
  2. Step 2: Convert to fraction form
    19,956,879.68/29,935,319.51 = 19,956,879.68/x
  3. Step 3: Cross multiply
    19,956,879.68x = 29,935,319.51 × 19,956,879.68
  4. Step 4: Simplify right side
    19,956,879.68x = 597,415,569,543,642.12
  5. Step 5: Solve for x
    x = 597,415,569,543,642.12/19,956,879.68
  6. Step 6: Final answer
    x = 29,935,319.51

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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.