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Finding the Fourth Proportional to 7,494.60, 11,217.60 and 5,307.60

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Solution

The fourth proportional to 7,494.60, 11,217.60 and 5,307.60 is: 7,944.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,494.60 : 11,217.60 = 5,307.60 : x
  2. Step 2: Convert to fraction form
    7,494.60/11,217.60 = 5,307.60/x
  3. Step 3: Cross multiply
    7,494.60x = 11,217.60 × 5,307.60
  4. Step 4: Simplify right side
    7,494.60x = 59,538,533.76
  5. Step 5: Solve for x
    x = 59,538,533.76/7,494.60
  6. Step 6: Final answer
    x = 7,944.19

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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.