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Finding the Fourth Proportional to 4,887.54, 6,746.90 and 2,999.43

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Solution

The fourth proportional to 4,887.54, 6,746.90 and 2,999.43 is: 4,140.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.54 : 6,746.90 = 2,999.43 : x
  2. Step 2: Convert to fraction form
    4,887.54/6,746.90 = 2,999.43/x
  3. Step 3: Cross multiply
    4,887.54x = 6,746.90 × 2,999.43
  4. Step 4: Simplify right side
    4,887.54x = 20,236,839.27
  5. Step 5: Solve for x
    x = 20,236,839.27/4,887.54
  6. Step 6: Final answer
    x = 4,140.50

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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.