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Finding the Fourth Proportional to 46,298.90, 69,540.60 and 43,687.71

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Solution

The fourth proportional to 46,298.90, 69,540.60 and 43,687.71 is: 65,618.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,298.90 : 69,540.60 = 43,687.71 : x
  2. Step 2: Convert to fraction form
    46,298.90/69,540.60 = 43,687.71/x
  3. Step 3: Cross multiply
    46,298.90x = 69,540.60 × 43,687.71
  4. Step 4: Simplify right side
    46,298.90x = 3,038,069,566.03
  5. Step 5: Solve for x
    x = 3,038,069,566.03/46,298.90
  6. Step 6: Final answer
    x = 65,618.62

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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.