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Finding the Fourth Proportional to 55,899.40, 83,630.40 and 36,216.40

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Solution

The fourth proportional to 55,899.40, 83,630.40 and 36,216.40 is: 54,182.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,899.40 : 83,630.40 = 36,216.40 : x
  2. Step 2: Convert to fraction form
    55,899.40/83,630.40 = 36,216.40/x
  3. Step 3: Cross multiply
    55,899.40x = 83,630.40 × 36,216.40
  4. Step 4: Simplify right side
    55,899.40x = 3,028,792,018.56
  5. Step 5: Solve for x
    x = 3,028,792,018.56/55,899.40
  6. Step 6: Final answer
    x = 54,182.91

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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.