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Finding the Fourth Proportional to 38,701, 53,412.42 and 22,786.92

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Solution

The fourth proportional to 38,701, 53,412.42 and 22,786.92 is: 31,448.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,701 : 53,412.42 = 22,786.92 : x
  2. Step 2: Convert to fraction form
    38,701/53,412.42 = 22,786.92/x
  3. Step 3: Cross multiply
    38,701x = 53,412.42 × 22,786.92
  4. Step 4: Simplify right side
    38,701x = 1,217,104,541.55
  5. Step 5: Solve for x
    x = 1,217,104,541.55/38,701
  6. Step 6: Final answer
    x = 31,448.92

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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.