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Finding the Fourth Proportional to 34,788.69, 48,007.08 and 21,360.51

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Solution

The fourth proportional to 34,788.69, 48,007.08 and 21,360.51 is: 29,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,788.69 : 48,007.08 = 21,360.51 : x
  2. Step 2: Convert to fraction form
    34,788.69/48,007.08 = 21,360.51/x
  3. Step 3: Cross multiply
    34,788.69x = 48,007.08 × 21,360.51
  4. Step 4: Simplify right side
    34,788.69x = 1,025,455,712.41
  5. Step 5: Solve for x
    x = 1,025,455,712.41/34,788.69
  6. Step 6: Final answer
    x = 29,476.70

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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.