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Finding the Fourth Proportional to 8,549.22, 11,788.63 and 5,559.51

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Solution

The fourth proportional to 8,549.22, 11,788.63 and 5,559.51 is: 7,666.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,549.22 : 11,788.63 = 5,559.51 : x
  2. Step 2: Convert to fraction form
    8,549.22/11,788.63 = 5,559.51/x
  3. Step 3: Cross multiply
    8,549.22x = 11,788.63 × 5,559.51
  4. Step 4: Simplify right side
    8,549.22x = 65,538,995.71
  5. Step 5: Solve for x
    x = 65,538,995.71/8,549.22
  6. Step 6: Final answer
    x = 7,666.08

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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.