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Finding the Fourth Proportional to 17,043.78, 25,565.93 and 5,357.00

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Solution

The fourth proportional to 17,043.78, 25,565.93 and 5,357.00 is: 8,035.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,043.78 : 25,565.93 = 5,357.00 : x
  2. Step 2: Convert to fraction form
    17,043.78/25,565.93 = 5,357.00/x
  3. Step 3: Cross multiply
    17,043.78x = 25,565.93 × 5,357.00
  4. Step 4: Simplify right side
    17,043.78x = 136,956,532.40
  5. Step 5: Solve for x
    x = 136,956,532.40/17,043.78
  6. Step 6: Final answer
    x = 8,035.57

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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.