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Finding the Fourth Proportional to 46,602.66, 69,894.80 and 18,139.66

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Solution

The fourth proportional to 46,602.66, 69,894.80 and 18,139.66 is: 27,205.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,602.66 : 69,894.80 = 18,139.66 : x
  2. Step 2: Convert to fraction form
    46,602.66/69,894.80 = 18,139.66/x
  3. Step 3: Cross multiply
    46,602.66x = 69,894.80 × 18,139.66
  4. Step 4: Simplify right side
    46,602.66x = 1,267,867,907.77
  5. Step 5: Solve for x
    x = 1,267,867,907.77/46,602.66
  6. Step 6: Final answer
    x = 27,205.91

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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.