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Finding the Fourth Proportional to 2,955.74, 4,434.26 and 875.91

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Solution

The fourth proportional to 2,955.74, 4,434.26 and 875.91 is: 1,314.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.74 : 4,434.26 = 875.91 : x
  2. Step 2: Convert to fraction form
    2,955.74/4,434.26 = 875.91/x
  3. Step 3: Cross multiply
    2,955.74x = 4,434.26 × 875.91
  4. Step 4: Simplify right side
    2,955.74x = 3,883,986.13
  5. Step 5: Solve for x
    x = 3,883,986.13/2,955.74
  6. Step 6: Final answer
    x = 1,314.05

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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.