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Finding the Fourth Proportional to 9,015.60, 12,441.60 and 5,037.60

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Solution

The fourth proportional to 9,015.60, 12,441.60 and 5,037.60 is: 6,951.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,015.60 : 12,441.60 = 5,037.60 : x
  2. Step 2: Convert to fraction form
    9,015.60/12,441.60 = 5,037.60/x
  3. Step 3: Cross multiply
    9,015.60x = 12,441.60 × 5,037.60
  4. Step 4: Simplify right side
    9,015.60x = 62,675,804.16
  5. Step 5: Solve for x
    x = 62,675,804.16/9,015.60
  6. Step 6: Final answer
    x = 6,951.93

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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.