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Finding the Fourth Proportional to 45,959.81, 68,924.21 and 17,490

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Solution

The fourth proportional to 45,959.81, 68,924.21 and 17,490 is: 26,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,959.81 : 68,924.21 = 17,490 : x
  2. Step 2: Convert to fraction form
    45,959.81/68,924.21 = 17,490/x
  3. Step 3: Cross multiply
    45,959.81x = 68,924.21 × 17,490
  4. Step 4: Simplify right side
    45,959.81x = 1,205,484,345.45
  5. Step 5: Solve for x
    x = 1,205,484,345.45/45,959.81
  6. Step 6: Final answer
    x = 26,229.10

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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.