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Finding the Fourth Proportional to 58,422.97, 87,654.81 and 18,448.12

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Solution

The fourth proportional to 58,422.97, 87,654.81 and 18,448.12 is: 27,678.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,422.97 : 87,654.81 = 18,448.12 : x
  2. Step 2: Convert to fraction form
    58,422.97/87,654.81 = 18,448.12/x
  3. Step 3: Cross multiply
    58,422.97x = 87,654.81 × 18,448.12
  4. Step 4: Simplify right side
    58,422.97x = 1,617,066,453.46
  5. Step 5: Solve for x
    x = 1,617,066,453.46/58,422.97
  6. Step 6: Final answer
    x = 27,678.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.