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Finding the Fourth Proportional to 15,173.34, 22,729.97 and 7,157.13

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Solution

The fourth proportional to 15,173.34, 22,729.97 and 7,157.13 is: 10,721.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,173.34 : 22,729.97 = 7,157.13 : x
  2. Step 2: Convert to fraction form
    15,173.34/22,729.97 = 7,157.13/x
  3. Step 3: Cross multiply
    15,173.34x = 22,729.97 × 7,157.13
  4. Step 4: Simplify right side
    15,173.34x = 162,681,368.08
  5. Step 5: Solve for x
    x = 162,681,368.08/15,173.34
  6. Step 6: Final answer
    x = 10,721.53

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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.