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Finding the Fourth Proportional to 38,755.08, 53,490.06 and 22,845

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Solution

The fourth proportional to 38,755.08, 53,490.06 and 22,845 is: 31,530.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,755.08 : 53,490.06 = 22,845 : x
  2. Step 2: Convert to fraction form
    38,755.08/53,490.06 = 22,845/x
  3. Step 3: Cross multiply
    38,755.08x = 53,490.06 × 22,845
  4. Step 4: Simplify right side
    38,755.08x = 1,221,980,420.70
  5. Step 5: Solve for x
    x = 1,221,980,420.70/38,755.08
  6. Step 6: Final answer
    x = 31,530.85

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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.