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Finding the Fourth Proportional to 34,989.66, 48,285.72 and 19,074.21

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Solution

The fourth proportional to 34,989.66, 48,285.72 and 19,074.21 is: 26,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,989.66 : 48,285.72 = 19,074.21 : x
  2. Step 2: Convert to fraction form
    34,989.66/48,285.72 = 19,074.21/x
  3. Step 3: Cross multiply
    34,989.66x = 48,285.72 × 19,074.21
  4. Step 4: Simplify right side
    34,989.66x = 921,011,963.28
  5. Step 5: Solve for x
    x = 921,011,963.28/34,989.66
  6. Step 6: Final answer
    x = 26,322.40

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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.