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Finding the Fourth Proportional to 55,860.40, 77,056.80 and 35,404.96

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Solution

The fourth proportional to 55,860.40, 77,056.80 and 35,404.96 is: 48,839.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,860.40 : 77,056.80 = 35,404.96 : x
  2. Step 2: Convert to fraction form
    55,860.40/77,056.80 = 35,404.96/x
  3. Step 3: Cross multiply
    55,860.40x = 77,056.80 × 35,404.96
  4. Step 4: Simplify right side
    55,860.40x = 2,728,192,921.73
  5. Step 5: Solve for x
    x = 2,728,192,921.73/55,860.40
  6. Step 6: Final answer
    x = 48,839.48

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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.