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Finding the Fourth Proportional to 17,615.16, 24,294.80 and 15,486.16

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Solution

The fourth proportional to 17,615.16, 24,294.80 and 15,486.16 is: 21,358.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,615.16 : 24,294.80 = 15,486.16 : x
  2. Step 2: Convert to fraction form
    17,615.16/24,294.80 = 15,486.16/x
  3. Step 3: Cross multiply
    17,615.16x = 24,294.80 × 15,486.16
  4. Step 4: Simplify right side
    17,615.16x = 376,233,082.54
  5. Step 5: Solve for x
    x = 376,233,082.54/17,615.16
  6. Step 6: Final answer
    x = 21,358.49

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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.