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Finding the Fourth Proportional to 15,796.16, 21,801.48 and 9,423.14

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Solution

The fourth proportional to 15,796.16, 21,801.48 and 9,423.14 is: 13,005.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,796.16 : 21,801.48 = 9,423.14 : x
  2. Step 2: Convert to fraction form
    15,796.16/21,801.48 = 9,423.14/x
  3. Step 3: Cross multiply
    15,796.16x = 21,801.48 × 9,423.14
  4. Step 4: Simplify right side
    15,796.16x = 205,438,398.25
  5. Step 5: Solve for x
    x = 205,438,398.25/15,796.16
  6. Step 6: Final answer
    x = 13,005.59

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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.