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Finding the Fourth Proportional to 19,253.34, 28,867.50 and 12,659.49

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Solution

The fourth proportional to 19,253.34, 28,867.50 and 12,659.49 is: 18,981.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,253.34 : 28,867.50 = 12,659.49 : x
  2. Step 2: Convert to fraction form
    19,253.34/28,867.50 = 12,659.49/x
  3. Step 3: Cross multiply
    19,253.34x = 28,867.50 × 12,659.49
  4. Step 4: Simplify right side
    19,253.34x = 365,447,827.58
  5. Step 5: Solve for x
    x = 365,447,827.58/19,253.34
  6. Step 6: Final answer
    x = 18,981.01

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.