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Finding the Fourth Proportional to 17,071.80, 25,607.70 and 15,322.20

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Solution

The fourth proportional to 17,071.80, 25,607.70 and 15,322.20 is: 22,983.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,071.80 : 25,607.70 = 15,322.20 : x
  2. Step 2: Convert to fraction form
    17,071.80/25,607.70 = 15,322.20/x
  3. Step 3: Cross multiply
    17,071.80x = 25,607.70 × 15,322.20
  4. Step 4: Simplify right side
    17,071.80x = 392,366,300.94
  5. Step 5: Solve for x
    x = 392,366,300.94/17,071.80
  6. Step 6: Final answer
    x = 22,983.30

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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.