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Finding the Fourth Proportional to 4,866.88, 6,718.54 and 3,188.36

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Solution

The fourth proportional to 4,866.88, 6,718.54 and 3,188.36 is: 4,401.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,866.88 : 6,718.54 = 3,188.36 : x
  2. Step 2: Convert to fraction form
    4,866.88/6,718.54 = 3,188.36/x
  3. Step 3: Cross multiply
    4,866.88x = 6,718.54 × 3,188.36
  4. Step 4: Simplify right side
    4,866.88x = 21,421,124.19
  5. Step 5: Solve for x
    x = 21,421,124.19/4,866.88
  6. Step 6: Final answer
    x = 4,401.41

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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.