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Finding the Fourth Proportional to 55,700.52, 76,866.48 and 30,549.48

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Solution

The fourth proportional to 55,700.52, 76,866.48 and 30,549.48 is: 42,158.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,700.52 : 76,866.48 = 30,549.48 : x
  2. Step 2: Convert to fraction form
    55,700.52/76,866.48 = 30,549.48/x
  3. Step 3: Cross multiply
    55,700.52x = 76,866.48 × 30,549.48
  4. Step 4: Simplify right side
    55,700.52x = 2,348,230,993.43
  5. Step 5: Solve for x
    x = 2,348,230,993.43/55,700.52
  6. Step 6: Final answer
    x = 42,158.15

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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.