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Finding the Fourth Proportional to 46,693.60, 69,991.80 and 25,601.20

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Solution

The fourth proportional to 46,693.60, 69,991.80 and 25,601.20 is: 38,375.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,693.60 : 69,991.80 = 25,601.20 : x
  2. Step 2: Convert to fraction form
    46,693.60/69,991.80 = 25,601.20/x
  3. Step 3: Cross multiply
    46,693.60x = 69,991.80 × 25,601.20
  4. Step 4: Simplify right side
    46,693.60x = 1,791,874,070.16
  5. Step 5: Solve for x
    x = 1,791,874,070.16/46,693.60
  6. Step 6: Final answer
    x = 38,375.15

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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.