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Finding the Fourth Proportional to 46,659.59, 64,388.36 and 25,438.40

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Solution

The fourth proportional to 46,659.59, 64,388.36 and 25,438.40 is: 35,103.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,659.59 : 64,388.36 = 25,438.40 : x
  2. Step 2: Convert to fraction form
    46,659.59/64,388.36 = 25,438.40/x
  3. Step 3: Cross multiply
    46,659.59x = 64,388.36 × 25,438.40
  4. Step 4: Simplify right side
    46,659.59x = 1,637,936,407.89
  5. Step 5: Solve for x
    x = 1,637,936,407.89/46,659.59
  6. Step 6: Final answer
    x = 35,103.96

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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.