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Finding the Fourth Proportional to 38,818.71, 53,569.55 and 22,051.71

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Solution

The fourth proportional to 38,818.71, 53,569.55 and 22,051.71 is: 30,431.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,818.71 : 53,569.55 = 22,051.71 : x
  2. Step 2: Convert to fraction form
    38,818.71/53,569.55 = 22,051.71/x
  3. Step 3: Cross multiply
    38,818.71x = 53,569.55 × 22,051.71
  4. Step 4: Simplify right side
    38,818.71x = 1,181,300,236.56
  5. Step 5: Solve for x
    x = 1,181,300,236.56/38,818.71
  6. Step 6: Final answer
    x = 30,431.21

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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.