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Finding the Fourth Proportional to 54,786.52, 81,783.45 and 48,143.52

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Solution

The fourth proportional to 54,786.52, 81,783.45 and 48,143.52 is: 71,867.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,786.52 : 81,783.45 = 48,143.52 : x
  2. Step 2: Convert to fraction form
    54,786.52/81,783.45 = 48,143.52/x
  3. Step 3: Cross multiply
    54,786.52x = 81,783.45 × 48,143.52
  4. Step 4: Simplify right side
    54,786.52x = 3,937,343,160.74
  5. Step 5: Solve for x
    x = 3,937,343,160.74/54,786.52
  6. Step 6: Final answer
    x = 71,867.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.