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Finding the Fourth Proportional to 7,472.40, 11,208.60 and 5,504.10

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Solution

The fourth proportional to 7,472.40, 11,208.60 and 5,504.10 is: 8,256.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.40 : 11,208.60 = 5,504.10 : x
  2. Step 2: Convert to fraction form
    7,472.40/11,208.60 = 5,504.10/x
  3. Step 3: Cross multiply
    7,472.40x = 11,208.60 × 5,504.10
  4. Step 4: Simplify right side
    7,472.40x = 61,693,255.26
  5. Step 5: Solve for x
    x = 61,693,255.26/7,472.40
  6. Step 6: Final answer
    x = 8,256.15

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Similar ratio
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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.