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Finding the Fourth Proportional to 38,610.72, 53,272.08 and 22,700.16

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Solution

The fourth proportional to 38,610.72, 53,272.08 and 22,700.16 is: 31,319.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,610.72 : 53,272.08 = 22,700.16 : x
  2. Step 2: Convert to fraction form
    38,610.72/53,272.08 = 22,700.16/x
  3. Step 3: Cross multiply
    38,610.72x = 53,272.08 × 22,700.16
  4. Step 4: Simplify right side
    38,610.72x = 1,209,284,739.53
  5. Step 5: Solve for x
    x = 1,209,284,739.53/38,610.72
  6. Step 6: Final answer
    x = 31,319.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.