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Finding the Fourth Proportional to 28,344,348.70, 39,757,670.90 and 28,344,348.70

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Solution

The fourth proportional to 28,344,348.70, 39,757,670.90 and 28,344,348.70 is: 39,757,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,344,348.70 : 39,757,670.90 = 28,344,348.70 : x
  2. Step 2: Convert to fraction form
    28,344,348.70/39,757,670.90 = 28,344,348.70/x
  3. Step 3: Cross multiply
    28,344,348.70x = 39,757,670.90 × 28,344,348.70
  4. Step 4: Simplify right side
    28,344,348.70x = 1,126,905,287,489,442.75
  5. Step 5: Solve for x
    x = 1,126,905,287,489,442.75/28,344,348.70
  6. Step 6: Final answer
    x = 39,757,670.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.