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Finding the Fourth Proportional to 46,841.61, 70,262.54 and 19,139.61

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Solution

The fourth proportional to 46,841.61, 70,262.54 and 19,139.61 is: 28,709.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,841.61 : 70,262.54 = 19,139.61 : x
  2. Step 2: Convert to fraction form
    46,841.61/70,262.54 = 19,139.61/x
  3. Step 3: Cross multiply
    46,841.61x = 70,262.54 × 19,139.61
  4. Step 4: Simplify right side
    46,841.61x = 1,344,797,517.51
  5. Step 5: Solve for x
    x = 1,344,797,517.51/46,841.61
  6. Step 6: Final answer
    x = 28,709.46

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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.