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Finding the Fourth Proportional to 20,035.65, 30,087.65 and 16,700.48

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Solution

The fourth proportional to 20,035.65, 30,087.65 and 16,700.48 is: 25,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,035.65 : 30,087.65 = 16,700.48 : x
  2. Step 2: Convert to fraction form
    20,035.65/30,087.65 = 16,700.48/x
  3. Step 3: Cross multiply
    20,035.65x = 30,087.65 × 16,700.48
  4. Step 4: Simplify right side
    20,035.65x = 502,478,201.21
  5. Step 5: Solve for x
    x = 502,478,201.21/20,035.65
  6. Step 6: Final answer
    x = 25,079.20

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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.