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Finding the Fourth Proportional to 8,662,158.60, 12,994,404.30 and 2,984,123.40

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Solution

The fourth proportional to 8,662,158.60, 12,994,404.30 and 2,984,123.40 is: 4,476,586.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,662,158.60 : 12,994,404.30 = 2,984,123.40 : x
  2. Step 2: Convert to fraction form
    8,662,158.60/12,994,404.30 = 2,984,123.40/x
  3. Step 3: Cross multiply
    8,662,158.60x = 12,994,404.30 × 2,984,123.40
  4. Step 4: Simplify right side
    8,662,158.60x = 38,776,905,940,690.62
  5. Step 5: Solve for x
    x = 38,776,905,940,690.62/8,662,158.60
  6. Step 6: Final answer
    x = 4,476,586.93

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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.