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Finding the Fourth Proportional to 47,188.40, 65,120.45 and 25,968.15

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Solution

The fourth proportional to 47,188.40, 65,120.45 and 25,968.15 is: 35,836.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,188.40 : 65,120.45 = 25,968.15 : x
  2. Step 2: Convert to fraction form
    47,188.40/65,120.45 = 25,968.15/x
  3. Step 3: Cross multiply
    47,188.40x = 65,120.45 × 25,968.15
  4. Step 4: Simplify right side
    47,188.40x = 1,691,057,483.83
  5. Step 5: Solve for x
    x = 1,691,057,483.83/47,188.40
  6. Step 6: Final answer
    x = 35,836.30

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1.5x scale

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.