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Finding the Fourth Proportional to 27,028.80, 40,543.20 and 9,500.40

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Solution

The fourth proportional to 27,028.80, 40,543.20 and 9,500.40 is: 14,250.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,028.80 : 40,543.20 = 9,500.40 : x
  2. Step 2: Convert to fraction form
    27,028.80/40,543.20 = 9,500.40/x
  3. Step 3: Cross multiply
    27,028.80x = 40,543.20 × 9,500.40
  4. Step 4: Simplify right side
    27,028.80x = 385,176,617.28
  5. Step 5: Solve for x
    x = 385,176,617.28/27,028.80
  6. Step 6: Final answer
    x = 14,250.60

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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.