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Finding the Fourth Proportional to 3,155.07, 4,731.51 and 933.24

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Solution

The fourth proportional to 3,155.07, 4,731.51 and 933.24 is: 1,399.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.07 : 4,731.51 = 933.24 : x
  2. Step 2: Convert to fraction form
    3,155.07/4,731.51 = 933.24/x
  3. Step 3: Cross multiply
    3,155.07x = 4,731.51 × 933.24
  4. Step 4: Simplify right side
    3,155.07x = 4,415,634.39
  5. Step 5: Solve for x
    x = 4,415,634.39/3,155.07
  6. Step 6: Final answer
    x = 1,399.54

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1.5x scale

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.