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Finding the Fourth Proportional to 47,205.75, 65,143.95 and 25,985.01

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Solution

The fourth proportional to 47,205.75, 65,143.95 and 25,985.01 is: 35,859.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,205.75 : 65,143.95 = 25,985.01 : x
  2. Step 2: Convert to fraction form
    47,205.75/65,143.95 = 25,985.01/x
  3. Step 3: Cross multiply
    47,205.75x = 65,143.95 × 25,985.01
  4. Step 4: Simplify right side
    47,205.75x = 1,692,766,192.19
  5. Step 5: Solve for x
    x = 1,692,766,192.19/47,205.75
  6. Step 6: Final answer
    x = 35,859.32

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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.