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Finding the Fourth Proportional to 15,687,521,612.70, 23,531,282,419.05 and 15,687,521,612.70

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Solution

The fourth proportional to 15,687,521,612.70, 23,531,282,419.05 and 15,687,521,612.70 is: 23,531,282,419.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,687,521,612.70 : 23,531,282,419.05 = 15,687,521,612.70 : x
  2. Step 2: Convert to fraction form
    15,687,521,612.70/23,531,282,419.05 = 15,687,521,612.70/x
  3. Step 3: Cross multiply
    15,687,521,612.70x = 23,531,282,419.05 × 15,687,521,612.70
  4. Step 4: Simplify right side
    15,687,521,612.70x = 369,147,501,523,394,428,928
  5. Step 5: Solve for x
    x = 369,147,501,523,394,428,928/15,687,521,612.70
  6. Step 6: Final answer
    x = 23,531,282,419.05

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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.