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Finding the Fourth Proportional to 38,490.74, 53,111.52 and 23,375.52

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Solution

The fourth proportional to 38,490.74, 53,111.52 and 23,375.52 is: 32,254.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,490.74 : 53,111.52 = 23,375.52 : x
  2. Step 2: Convert to fraction form
    38,490.74/53,111.52 = 23,375.52/x
  3. Step 3: Cross multiply
    38,490.74x = 53,111.52 × 23,375.52
  4. Step 4: Simplify right side
    38,490.74x = 1,241,509,397.99
  5. Step 5: Solve for x
    x = 1,241,509,397.99/38,490.74
  6. Step 6: Final answer
    x = 32,254.76

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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.