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Finding the Fourth Proportional to 45,991.76, 63,468.64 and 25,848.64

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Solution

The fourth proportional to 45,991.76, 63,468.64 and 25,848.64 is: 35,671.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,991.76 : 63,468.64 = 25,848.64 : x
  2. Step 2: Convert to fraction form
    45,991.76/63,468.64 = 25,848.64/x
  3. Step 3: Cross multiply
    45,991.76x = 63,468.64 × 25,848.64
  4. Step 4: Simplify right side
    45,991.76x = 1,640,578,026.65
  5. Step 5: Solve for x
    x = 1,640,578,026.65/45,991.76
  6. Step 6: Final answer
    x = 35,671.13

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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.