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Finding the Fourth Proportional to 8,232,692.80, 12,356,037.60 and 3,690,731.20

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Solution

The fourth proportional to 8,232,692.80, 12,356,037.60 and 3,690,731.20 is: 5,539,234.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,232,692.80 : 12,356,037.60 = 3,690,731.20 : x
  2. Step 2: Convert to fraction form
    8,232,692.80/12,356,037.60 = 3,690,731.20/x
  3. Step 3: Cross multiply
    8,232,692.80x = 12,356,037.60 × 3,690,731.20
  4. Step 4: Simplify right side
    8,232,692.80x = 45,602,813,478,693.12
  5. Step 5: Solve for x
    x = 45,602,813,478,693.12/8,232,692.80
  6. Step 6: Final answer
    x = 5,539,234.20

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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.