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Finding the Fourth Proportional to 25,953,428.70, 38,930,143.05 and 25,953,428.70

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Solution

The fourth proportional to 25,953,428.70, 38,930,143.05 and 25,953,428.70 is: 38,930,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,953,428.70 : 38,930,143.05 = 25,953,428.70 : x
  2. Step 2: Convert to fraction form
    25,953,428.70/38,930,143.05 = 25,953,428.70/x
  3. Step 3: Cross multiply
    25,953,428.70x = 38,930,143.05 × 25,953,428.70
  4. Step 4: Simplify right side
    25,953,428.70x = 1,010,370,691,928,975.38
  5. Step 5: Solve for x
    x = 1,010,370,691,928,975.38/25,953,428.70
  6. Step 6: Final answer
    x = 38,930,143.05

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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.