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Finding the Fourth Proportional to 46,017.91, 68,690.91 and 39,486.07

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Solution

The fourth proportional to 46,017.91, 68,690.91 and 39,486.07 is: 58,940.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,017.91 : 68,690.91 = 39,486.07 : x
  2. Step 2: Convert to fraction form
    46,017.91/68,690.91 = 39,486.07/x
  3. Step 3: Cross multiply
    46,017.91x = 68,690.91 × 39,486.07
  4. Step 4: Simplify right side
    46,017.91x = 2,712,334,080.62
  5. Step 5: Solve for x
    x = 2,712,334,080.62/46,017.91
  6. Step 6: Final answer
    x = 58,940.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.