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Finding the Fourth Proportional to 26,979.20, 40,468.80 and 24,160.40

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Solution

The fourth proportional to 26,979.20, 40,468.80 and 24,160.40 is: 36,240.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,979.20 : 40,468.80 = 24,160.40 : x
  2. Step 2: Convert to fraction form
    26,979.20/40,468.80 = 24,160.40/x
  3. Step 3: Cross multiply
    26,979.20x = 40,468.80 × 24,160.40
  4. Step 4: Simplify right side
    26,979.20x = 977,742,395.52
  5. Step 5: Solve for x
    x = 977,742,395.52/26,979.20
  6. Step 6: Final answer
    x = 36,240.60

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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.