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Finding the Fourth Proportional to 13,994.16, 19,311.88 and 7,706.52

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Solution

The fourth proportional to 13,994.16, 19,311.88 and 7,706.52 is: 10,634.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,994.16 : 19,311.88 = 7,706.52 : x
  2. Step 2: Convert to fraction form
    13,994.16/19,311.88 = 7,706.52/x
  3. Step 3: Cross multiply
    13,994.16x = 19,311.88 × 7,706.52
  4. Step 4: Simplify right side
    13,994.16x = 148,827,389.46
  5. Step 5: Solve for x
    x = 148,827,389.46/13,994.16
  6. Step 6: Final answer
    x = 10,634.96

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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.