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Finding the Fourth Proportional to 46,909.54, 64,734.68 and 25,687.54

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Solution

The fourth proportional to 46,909.54, 64,734.68 and 25,687.54 is: 35,448.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,909.54 : 64,734.68 = 25,687.54 : x
  2. Step 2: Convert to fraction form
    46,909.54/64,734.68 = 25,687.54/x
  3. Step 3: Cross multiply
    46,909.54x = 64,734.68 × 25,687.54
  4. Step 4: Simplify right side
    46,909.54x = 1,662,874,681.89
  5. Step 5: Solve for x
    x = 1,662,874,681.89/46,909.54
  6. Step 6: Final answer
    x = 35,448.54

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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.