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Finding the Fourth Proportional to 46,908, 64,732.60 and 25,687.20

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Solution

The fourth proportional to 46,908, 64,732.60 and 25,687.20 is: 35,448.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,908 : 64,732.60 = 25,687.20 : x
  2. Step 2: Convert to fraction form
    46,908/64,732.60 = 25,687.20/x
  3. Step 3: Cross multiply
    46,908x = 64,732.60 × 25,687.20
  4. Step 4: Simplify right side
    46,908x = 1,662,799,242.72
  5. Step 5: Solve for x
    x = 1,662,799,242.72/46,908
  6. Step 6: Final answer
    x = 35,448.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.