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Finding the Fourth Proportional to 12,604,611.60, 18,906,917.40 and 3,506,691.60

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Solution

The fourth proportional to 12,604,611.60, 18,906,917.40 and 3,506,691.60 is: 5,260,037.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,604,611.60 : 18,906,917.40 = 3,506,691.60 : x
  2. Step 2: Convert to fraction form
    12,604,611.60/18,906,917.40 = 3,506,691.60/x
  3. Step 3: Cross multiply
    12,604,611.60x = 18,906,917.40 × 3,506,691.60
  4. Step 4: Simplify right side
    12,604,611.60x = 66,300,728,428,473.84
  5. Step 5: Solve for x
    x = 66,300,728,428,473.84/12,604,611.60
  6. Step 6: Final answer
    x = 5,260,037.40

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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.