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Finding the Fourth Proportional to 57,860.53, 79,815.35 and 33,658.76

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Solution

The fourth proportional to 57,860.53, 79,815.35 and 33,658.76 is: 46,430.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,860.53 : 79,815.35 = 33,658.76 : x
  2. Step 2: Convert to fraction form
    57,860.53/79,815.35 = 33,658.76/x
  3. Step 3: Cross multiply
    57,860.53x = 79,815.35 × 33,658.76
  4. Step 4: Simplify right side
    57,860.53x = 2,686,485,993.65
  5. Step 5: Solve for x
    x = 2,686,485,993.65/57,860.53
  6. Step 6: Final answer
    x = 46,430.38

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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.