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Finding the Fourth Proportional to 56,326.88, 77,727.75 and 30,828.20

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Solution

The fourth proportional to 56,326.88, 77,727.75 and 30,828.20 is: 42,541.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,326.88 : 77,727.75 = 30,828.20 : x
  2. Step 2: Convert to fraction form
    56,326.88/77,727.75 = 30,828.20/x
  3. Step 3: Cross multiply
    56,326.88x = 77,727.75 × 30,828.20
  4. Step 4: Simplify right side
    56,326.88x = 2,396,206,622.55
  5. Step 5: Solve for x
    x = 2,396,206,622.55/56,326.88
  6. Step 6: Final answer
    x = 42,541.09

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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.