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Finding the Fourth Proportional to 4,887.95, 6,744.08 and 2,898.95

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Solution

The fourth proportional to 4,887.95, 6,744.08 and 2,898.95 is: 3,999.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.95 : 6,744.08 = 2,898.95 : x
  2. Step 2: Convert to fraction form
    4,887.95/6,744.08 = 2,898.95/x
  3. Step 3: Cross multiply
    4,887.95x = 6,744.08 × 2,898.95
  4. Step 4: Simplify right side
    4,887.95x = 19,550,724.24
  5. Step 5: Solve for x
    x = 19,550,724.24/4,887.95
  6. Step 6: Final answer
    x = 3,999.78

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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.