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Finding the Fourth Proportional to 47,157.77, 65,078.16 and 25,647.72

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Solution

The fourth proportional to 47,157.77, 65,078.16 and 25,647.72 is: 35,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,157.77 : 65,078.16 = 25,647.72 : x
  2. Step 2: Convert to fraction form
    47,157.77/65,078.16 = 25,647.72/x
  3. Step 3: Cross multiply
    47,157.77x = 65,078.16 × 25,647.72
  4. Step 4: Simplify right side
    47,157.77x = 1,669,106,766.02
  5. Step 5: Solve for x
    x = 1,669,106,766.02/47,157.77
  6. Step 6: Final answer
    x = 35,394.10

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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.