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Finding the Fourth Proportional to 56,914.40, 85,441.80 and 35,854.40

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Solution

The fourth proportional to 56,914.40, 85,441.80 and 35,854.40 is: 53,825.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,914.40 : 85,441.80 = 35,854.40 : x
  2. Step 2: Convert to fraction form
    56,914.40/85,441.80 = 35,854.40/x
  3. Step 3: Cross multiply
    56,914.40x = 85,441.80 × 35,854.40
  4. Step 4: Simplify right side
    56,914.40x = 3,063,464,473.92
  5. Step 5: Solve for x
    x = 3,063,464,473.92/56,914.40
  6. Step 6: Final answer
    x = 53,825.82

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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.