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Finding the Fourth Proportional to 19,959.91, 29,960.64 and 14,700.87

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Solution

The fourth proportional to 19,959.91, 29,960.64 and 14,700.87 is: 22,066.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959.91 : 29,960.64 = 14,700.87 : x
  2. Step 2: Convert to fraction form
    19,959.91/29,960.64 = 14,700.87/x
  3. Step 3: Cross multiply
    19,959.91x = 29,960.64 × 14,700.87
  4. Step 4: Simplify right side
    19,959.91x = 440,447,473.76
  5. Step 5: Solve for x
    x = 440,447,473.76/19,959.91
  6. Step 6: Final answer
    x = 22,066.61

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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.