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Finding the Fourth Proportional to 7,503.40, 11,255.10 and 2,572.60

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Solution

The fourth proportional to 7,503.40, 11,255.10 and 2,572.60 is: 3,858.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,503.40 : 11,255.10 = 2,572.60 : x
  2. Step 2: Convert to fraction form
    7,503.40/11,255.10 = 2,572.60/x
  3. Step 3: Cross multiply
    7,503.40x = 11,255.10 × 2,572.60
  4. Step 4: Simplify right side
    7,503.40x = 28,954,870.26
  5. Step 5: Solve for x
    x = 28,954,870.26/7,503.40
  6. Step 6: Final answer
    x = 3,858.90

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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.