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Finding the Fourth Proportional to 14,718.71, 22,079.89 and 4,724.12

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Solution

The fourth proportional to 14,718.71, 22,079.89 and 4,724.12 is: 7,086.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,718.71 : 22,079.89 = 4,724.12 : x
  2. Step 2: Convert to fraction form
    14,718.71/22,079.89 = 4,724.12/x
  3. Step 3: Cross multiply
    14,718.71x = 22,079.89 × 4,724.12
  4. Step 4: Simplify right side
    14,718.71x = 104,308,111.05
  5. Step 5: Solve for x
    x = 104,308,111.05/14,718.71
  6. Step 6: Final answer
    x = 7,086.77

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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.