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Finding the Fourth Proportional to 31,173.16, 43,017.04 and 17,025.16

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Solution

The fourth proportional to 31,173.16, 43,017.04 and 17,025.16 is: 23,493.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,173.16 : 43,017.04 = 17,025.16 : x
  2. Step 2: Convert to fraction form
    31,173.16/43,017.04 = 17,025.16/x
  3. Step 3: Cross multiply
    31,173.16x = 43,017.04 × 17,025.16
  4. Step 4: Simplify right side
    31,173.16x = 732,371,988.73
  5. Step 5: Solve for x
    x = 732,371,988.73/31,173.16
  6. Step 6: Final answer
    x = 23,493.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.