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Finding the Fourth Proportional to 36,689.93, 55,020.92 and 15,616.67

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Solution

The fourth proportional to 36,689.93, 55,020.92 and 15,616.67 is: 23,419.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,689.93 : 55,020.92 = 15,616.67 : x
  2. Step 2: Convert to fraction form
    36,689.93/55,020.92 = 15,616.67/x
  3. Step 3: Cross multiply
    36,689.93x = 55,020.92 × 15,616.67
  4. Step 4: Simplify right side
    36,689.93x = 859,243,197.55
  5. Step 5: Solve for x
    x = 859,243,197.55/36,689.93
  6. Step 6: Final answer
    x = 23,419.05

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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.