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Finding the Fourth Proportional to 4,887.59, 6,744.87 and 2,649.45

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Solution

The fourth proportional to 4,887.59, 6,744.87 and 2,649.45 is: 3,656.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.59 : 6,744.87 = 2,649.45 : x
  2. Step 2: Convert to fraction form
    4,887.59/6,744.87 = 2,649.45/x
  3. Step 3: Cross multiply
    4,887.59x = 6,744.87 × 2,649.45
  4. Step 4: Simplify right side
    4,887.59x = 17,870,221.11
  5. Step 5: Solve for x
    x = 17,870,221.11/4,887.59
  6. Step 6: Final answer
    x = 3,656.25

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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.