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Finding the Fourth Proportional to 27,430,256.70, 38,351,970.90 and 27,430,256.70

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Solution

The fourth proportional to 27,430,256.70, 38,351,970.90 and 27,430,256.70 is: 38,351,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,430,256.70 : 38,351,970.90 = 27,430,256.70 : x
  2. Step 2: Convert to fraction form
    27,430,256.70/38,351,970.90 = 27,430,256.70/x
  3. Step 3: Cross multiply
    27,430,256.70x = 38,351,970.90 × 27,430,256.70
  4. Step 4: Simplify right side
    27,430,256.70x = 1,052,004,406,737,930
  5. Step 5: Solve for x
    x = 1,052,004,406,737,930/27,430,256.70
  6. Step 6: Final answer
    x = 38,351,970.90

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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.