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Finding the Fourth Proportional to 55,003.70, 75,905.10 and 29,853.20

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Solution

The fourth proportional to 55,003.70, 75,905.10 and 29,853.20 is: 41,197.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,003.70 : 75,905.10 = 29,853.20 : x
  2. Step 2: Convert to fraction form
    55,003.70/75,905.10 = 29,853.20/x
  3. Step 3: Cross multiply
    55,003.70x = 75,905.10 × 29,853.20
  4. Step 4: Simplify right side
    55,003.70x = 2,266,009,751.79
  5. Step 5: Solve for x
    x = 2,266,009,751.79/55,003.70
  6. Step 6: Final answer
    x = 41,197.41

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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.