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Finding the Fourth Proportional to 17,602.79, 26,403.93 and 4,275.87

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Solution

The fourth proportional to 17,602.79, 26,403.93 and 4,275.87 is: 6,413.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,602.79 : 26,403.93 = 4,275.87 : x
  2. Step 2: Convert to fraction form
    17,602.79/26,403.93 = 4,275.87/x
  3. Step 3: Cross multiply
    17,602.79x = 26,403.93 × 4,275.87
  4. Step 4: Simplify right side
    17,602.79x = 112,899,772.17
  5. Step 5: Solve for x
    x = 112,899,772.17/17,602.79
  6. Step 6: Final answer
    x = 6,413.74

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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.