Home / 19,000.20-28,500.30-17,617.80

Finding the Fourth Proportional to 19,000.20, 28,500.30 and 17,617.80

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Solution

The fourth proportional to 19,000.20, 28,500.30 and 17,617.80 is: 26,426.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000.20 : 28,500.30 = 17,617.80 : x
  2. Step 2: Convert to fraction form
    19,000.20/28,500.30 = 17,617.80/x
  3. Step 3: Cross multiply
    19,000.20x = 28,500.30 × 17,617.80
  4. Step 4: Simplify right side
    19,000.20x = 502,112,585.34
  5. Step 5: Solve for x
    x = 502,112,585.34/19,000.20
  6. Step 6: Final answer
    x = 26,426.70

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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.