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Finding the Fourth Proportional to 15,128.62, 22,693.03 and 5,268.08

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Solution

The fourth proportional to 15,128.62, 22,693.03 and 5,268.08 is: 7,902.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128.62 : 22,693.03 = 5,268.08 : x
  2. Step 2: Convert to fraction form
    15,128.62/22,693.03 = 5,268.08/x
  3. Step 3: Cross multiply
    15,128.62x = 22,693.03 × 5,268.08
  4. Step 4: Simplify right side
    15,128.62x = 119,548,741.04
  5. Step 5: Solve for x
    x = 119,548,741.04/15,128.62
  6. Step 6: Final answer
    x = 7,902.16

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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.