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Finding the Fourth Proportional to 55,057.95, 75,968.96 and 38,035.40

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Solution

The fourth proportional to 55,057.95, 75,968.96 and 38,035.40 is: 52,481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,057.95 : 75,968.96 = 38,035.40 : x
  2. Step 2: Convert to fraction form
    55,057.95/75,968.96 = 38,035.40/x
  3. Step 3: Cross multiply
    55,057.95x = 75,968.96 × 38,035.40
  4. Step 4: Simplify right side
    55,057.95x = 2,889,509,211.16
  5. Step 5: Solve for x
    x = 2,889,509,211.16/55,057.95
  6. Step 6: Final answer
    x = 52,481.23

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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.