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Finding the Fourth Proportional to 6,561.99, 9,054.77 and 4,008.47

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Solution

The fourth proportional to 6,561.99, 9,054.77 and 4,008.47 is: 5,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,561.99 : 9,054.77 = 4,008.47 : x
  2. Step 2: Convert to fraction form
    6,561.99/9,054.77 = 4,008.47/x
  3. Step 3: Cross multiply
    6,561.99x = 9,054.77 × 4,008.47
  4. Step 4: Simplify right side
    6,561.99x = 36,295,708.59
  5. Step 5: Solve for x
    x = 36,295,708.59/6,561.99
  6. Step 6: Final answer
    x = 5,531.20

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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.