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Finding the Fourth Proportional to 17,031.80, 25,539.90 and 9,133.10

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Solution

The fourth proportional to 17,031.80, 25,539.90 and 9,133.10 is: 13,695.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,031.80 : 25,539.90 = 9,133.10 : x
  2. Step 2: Convert to fraction form
    17,031.80/25,539.90 = 9,133.10/x
  3. Step 3: Cross multiply
    17,031.80x = 25,539.90 × 9,133.10
  4. Step 4: Simplify right side
    17,031.80x = 233,258,460.69
  5. Step 5: Solve for x
    x = 233,258,460.69/17,031.80
  6. Step 6: Final answer
    x = 13,695.47

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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.