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Finding the Fourth Proportional to 16,978,850.80, 25,468,276.20 and 11,604,079.60

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Solution

The fourth proportional to 16,978,850.80, 25,468,276.20 and 11,604,079.60 is: 17,406,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,978,850.80 : 25,468,276.20 = 11,604,079.60 : x
  2. Step 2: Convert to fraction form
    16,978,850.80/25,468,276.20 = 11,604,079.60/x
  3. Step 3: Cross multiply
    16,978,850.80x = 25,468,276.20 × 11,604,079.60
  4. Step 4: Simplify right side
    16,978,850.80x = 295,535,904,299,585.50
  5. Step 5: Solve for x
    x = 295,535,904,299,585.50/16,978,850.80
  6. Step 6: Final answer
    x = 17,406,119.40

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1.5x scale

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.