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Finding the Fourth Proportional to 8,365.72, 12,548.40 and 2,522.20

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Solution

The fourth proportional to 8,365.72, 12,548.40 and 2,522.20 is: 3,783.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,365.72 : 12,548.40 = 2,522.20 : x
  2. Step 2: Convert to fraction form
    8,365.72/12,548.40 = 2,522.20/x
  3. Step 3: Cross multiply
    8,365.72x = 12,548.40 × 2,522.20
  4. Step 4: Simplify right side
    8,365.72x = 31,649,574.48
  5. Step 5: Solve for x
    x = 31,649,574.48/8,365.72
  6. Step 6: Final answer
    x = 3,783.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.