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Finding the Fourth Proportional to 8,957,569.80, 13,436,354.70 and 4,912,494.60

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Solution

The fourth proportional to 8,957,569.80, 13,436,354.70 and 4,912,494.60 is: 7,368,741.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957,569.80 : 13,436,354.70 = 4,912,494.60 : x
  2. Step 2: Convert to fraction form
    8,957,569.80/13,436,354.70 = 4,912,494.60/x
  3. Step 3: Cross multiply
    8,957,569.80x = 13,436,354.70 × 4,912,494.60
  4. Step 4: Simplify right side
    8,957,569.80x = 66,006,019,907,434.61
  5. Step 5: Solve for x
    x = 66,006,019,907,434.61/8,957,569.80
  6. Step 6: Final answer
    x = 7,368,741.90

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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.