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Finding the Fourth Proportional to 14,572.80, 20,099.81 and 9,528.93

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Solution

The fourth proportional to 14,572.80, 20,099.81 and 9,528.93 is: 13,142.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,572.80 : 20,099.81 = 9,528.93 : x
  2. Step 2: Convert to fraction form
    14,572.80/20,099.81 = 9,528.93/x
  3. Step 3: Cross multiply
    14,572.80x = 20,099.81 × 9,528.93
  4. Step 4: Simplify right side
    14,572.80x = 191,529,706.33
  5. Step 5: Solve for x
    x = 191,529,706.33/14,572.80
  6. Step 6: Final answer
    x = 13,142.96

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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.