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Finding the Fourth Proportional to 7,611.13, 10,503.77 and 4,254.03

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Solution

The fourth proportional to 7,611.13, 10,503.77 and 4,254.03 is: 5,870.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.13 : 10,503.77 = 4,254.03 : x
  2. Step 2: Convert to fraction form
    7,611.13/10,503.77 = 4,254.03/x
  3. Step 3: Cross multiply
    7,611.13x = 10,503.77 × 4,254.03
  4. Step 4: Simplify right side
    7,611.13x = 44,683,352.69
  5. Step 5: Solve for x
    x = 44,683,352.69/7,611.13
  6. Step 6: Final answer
    x = 5,870.79

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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.