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Finding the Fourth Proportional to 35,479.57, 48,943.48 and 22,045.72

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Solution

The fourth proportional to 35,479.57, 48,943.48 and 22,045.72 is: 30,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,479.57 : 48,943.48 = 22,045.72 : x
  2. Step 2: Convert to fraction form
    35,479.57/48,943.48 = 22,045.72/x
  3. Step 3: Cross multiply
    35,479.57x = 48,943.48 × 22,045.72
  4. Step 4: Simplify right side
    35,479.57x = 1,078,993,900.96
  5. Step 5: Solve for x
    x = 1,078,993,900.96/35,479.57
  6. Step 6: Final answer
    x = 30,411.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.