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Finding the Fourth Proportional to 9,070.58, 13,605.87 and 3,872.81

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Solution

The fourth proportional to 9,070.58, 13,605.87 and 3,872.81 is: 5,809.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,070.58 : 13,605.87 = 3,872.81 : x
  2. Step 2: Convert to fraction form
    9,070.58/13,605.87 = 3,872.81/x
  3. Step 3: Cross multiply
    9,070.58x = 13,605.87 × 3,872.81
  4. Step 4: Simplify right side
    9,070.58x = 52,692,997.93
  5. Step 5: Solve for x
    x = 52,692,997.93/9,070.58
  6. Step 6: Final answer
    x = 5,809.22

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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.