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Finding the Fourth Proportional to 30,706.71, 46,068.11 and 9,645.90

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Solution

The fourth proportional to 30,706.71, 46,068.11 and 9,645.90 is: 14,471.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,706.71 : 46,068.11 = 9,645.90 : x
  2. Step 2: Convert to fraction form
    30,706.71/46,068.11 = 9,645.90/x
  3. Step 3: Cross multiply
    30,706.71x = 46,068.11 × 9,645.90
  4. Step 4: Simplify right side
    30,706.71x = 444,368,382.25
  5. Step 5: Solve for x
    x = 444,368,382.25/30,706.71
  6. Step 6: Final answer
    x = 14,471.38

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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.