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Finding the Fourth Proportional to 27,298.80, 40,919.40 and 10,652.40

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Solution

The fourth proportional to 27,298.80, 40,919.40 and 10,652.40 is: 15,967.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,298.80 : 40,919.40 = 10,652.40 : x
  2. Step 2: Convert to fraction form
    27,298.80/40,919.40 = 10,652.40/x
  3. Step 3: Cross multiply
    27,298.80x = 40,919.40 × 10,652.40
  4. Step 4: Simplify right side
    27,298.80x = 435,889,816.56
  5. Step 5: Solve for x
    x = 435,889,816.56/27,298.80
  6. Step 6: Final answer
    x = 15,967.36

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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.