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Finding the Fourth Proportional to 14,685.76, 22,035.72 and 7,288.84

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Solution

The fourth proportional to 14,685.76, 22,035.72 and 7,288.84 is: 10,936.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,685.76 : 22,035.72 = 7,288.84 : x
  2. Step 2: Convert to fraction form
    14,685.76/22,035.72 = 7,288.84/x
  3. Step 3: Cross multiply
    14,685.76x = 22,035.72 × 7,288.84
  4. Step 4: Simplify right side
    14,685.76x = 160,614,837.36
  5. Step 5: Solve for x
    x = 160,614,837.36/14,685.76
  6. Step 6: Final answer
    x = 10,936.77

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1.5x scale

Why These Related Problems?

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