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Finding the Fourth Proportional to 48,679.76, 73,019.64 and 17,514.20

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Solution

The fourth proportional to 48,679.76, 73,019.64 and 17,514.20 is: 26,271.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,679.76 : 73,019.64 = 17,514.20 : x
  2. Step 2: Convert to fraction form
    48,679.76/73,019.64 = 17,514.20/x
  3. Step 3: Cross multiply
    48,679.76x = 73,019.64 × 17,514.20
  4. Step 4: Simplify right side
    48,679.76x = 1,278,880,578.89
  5. Step 5: Solve for x
    x = 1,278,880,578.89/48,679.76
  6. Step 6: Final answer
    x = 26,271.30

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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.