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Finding the Fourth Proportional to 38,492.03, 53,115.98 and 21,494.97

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Solution

The fourth proportional to 38,492.03, 53,115.98 and 21,494.97 is: 29,661.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,492.03 : 53,115.98 = 21,494.97 : x
  2. Step 2: Convert to fraction form
    38,492.03/53,115.98 = 21,494.97/x
  3. Step 3: Cross multiply
    38,492.03x = 53,115.98 × 21,494.97
  4. Step 4: Simplify right side
    38,492.03x = 1,141,726,289.15
  5. Step 5: Solve for x
    x = 1,141,726,289.15/38,492.03
  6. Step 6: Final answer
    x = 29,661.37

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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.