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Finding the Fourth Proportional to 34,043.96, 46,980.65 and 19,139.96

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Solution

The fourth proportional to 34,043.96, 46,980.65 and 19,139.96 is: 26,413.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,043.96 : 46,980.65 = 19,139.96 : x
  2. Step 2: Convert to fraction form
    34,043.96/46,980.65 = 19,139.96/x
  3. Step 3: Cross multiply
    34,043.96x = 46,980.65 × 19,139.96
  4. Step 4: Simplify right side
    34,043.96x = 899,207,574.72
  5. Step 5: Solve for x
    x = 899,207,574.72/34,043.96
  6. Step 6: Final answer
    x = 26,413.13

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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.