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Finding the Fourth Proportional to 3,917.13, 5,875.59 and 955.59

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Solution

The fourth proportional to 3,917.13, 5,875.59 and 955.59 is: 1,433.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.13 : 5,875.59 = 955.59 : x
  2. Step 2: Convert to fraction form
    3,917.13/5,875.59 = 955.59/x
  3. Step 3: Cross multiply
    3,917.13x = 5,875.59 × 955.59
  4. Step 4: Simplify right side
    3,917.13x = 5,614,655.05
  5. Step 5: Solve for x
    x = 5,614,655.05/3,917.13
  6. Step 6: Final answer
    x = 1,433.36

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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.