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Finding the Fourth Proportional to 23,879.72, 32,935.02 and 15,382.52

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Solution

The fourth proportional to 23,879.72, 32,935.02 and 15,382.52 is: 21,215.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,879.72 : 32,935.02 = 15,382.52 : x
  2. Step 2: Convert to fraction form
    23,879.72/32,935.02 = 15,382.52/x
  3. Step 3: Cross multiply
    23,879.72x = 32,935.02 × 15,382.52
  4. Step 4: Simplify right side
    23,879.72x = 506,623,603.85
  5. Step 5: Solve for x
    x = 506,623,603.85/23,879.72
  6. Step 6: Final answer
    x = 21,215.64

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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.