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Finding the Fourth Proportional to 17,145.55, 25,720.05 and 4,666.54

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Solution

The fourth proportional to 17,145.55, 25,720.05 and 4,666.54 is: 7,000.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,145.55 : 25,720.05 = 4,666.54 : x
  2. Step 2: Convert to fraction form
    17,145.55/25,720.05 = 4,666.54/x
  3. Step 3: Cross multiply
    17,145.55x = 25,720.05 × 4,666.54
  4. Step 4: Simplify right side
    17,145.55x = 120,023,722.20
  5. Step 5: Solve for x
    x = 120,023,722.20/17,145.55
  6. Step 6: Final answer
    x = 7,000.29

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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.