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Finding the Fourth Proportional to 28,029,489.90, 41,964,518.70 and 28,029,489.90

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Solution

The fourth proportional to 28,029,489.90, 41,964,518.70 and 28,029,489.90 is: 41,964,518.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029,489.90 : 41,964,518.70 = 28,029,489.90 : x
  2. Step 2: Convert to fraction form
    28,029,489.90/41,964,518.70 = 28,029,489.90/x
  3. Step 3: Cross multiply
    28,029,489.90x = 41,964,518.70 × 28,029,489.90
  4. Step 4: Simplify right side
    28,029,489.90x = 1,176,244,053,060,011.25
  5. Step 5: Solve for x
    x = 1,176,244,053,060,011.25/28,029,489.90
  6. Step 6: Final answer
    x = 41,964,518.70

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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.