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Finding the Fourth Proportional to 9,971.68, 13,752.84 and 8,774.08

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Solution

The fourth proportional to 9,971.68, 13,752.84 and 8,774.08 is: 12,101.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,971.68 : 13,752.84 = 8,774.08 : x
  2. Step 2: Convert to fraction form
    9,971.68/13,752.84 = 8,774.08/x
  3. Step 3: Cross multiply
    9,971.68x = 13,752.84 × 8,774.08
  4. Step 4: Simplify right side
    9,971.68x = 120,668,518.39
  5. Step 5: Solve for x
    x = 120,668,518.39/9,971.68
  6. Step 6: Final answer
    x = 12,101.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.