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Finding the Fourth Proportional to 4,955.49, 7,433.49 and 1,257.75

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Solution

The fourth proportional to 4,955.49, 7,433.49 and 1,257.75 is: 1,886.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,955.49 : 7,433.49 = 1,257.75 : x
  2. Step 2: Convert to fraction form
    4,955.49/7,433.49 = 1,257.75/x
  3. Step 3: Cross multiply
    4,955.49x = 7,433.49 × 1,257.75
  4. Step 4: Simplify right side
    4,955.49x = 9,349,490.60
  5. Step 5: Solve for x
    x = 9,349,490.60/4,955.49
  6. Step 6: Final answer
    x = 1,886.69

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Double scale
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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.