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Finding the Fourth Proportional to 9,057.60, 13,569.60 and 5,150.40

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Solution

The fourth proportional to 9,057.60, 13,569.60 and 5,150.40 is: 7,716.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,057.60 : 13,569.60 = 5,150.40 : x
  2. Step 2: Convert to fraction form
    9,057.60/13,569.60 = 5,150.40/x
  3. Step 3: Cross multiply
    9,057.60x = 13,569.60 × 5,150.40
  4. Step 4: Simplify right side
    9,057.60x = 69,888,867.84
  5. Step 5: Solve for x
    x = 69,888,867.84/9,057.60
  6. Step 6: Final answer
    x = 7,716.05

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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.