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Finding the Fourth Proportional to 11,037.76, 15,230.40 and 7,062.40

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Solution

The fourth proportional to 11,037.76, 15,230.40 and 7,062.40 is: 9,745.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,037.76 : 15,230.40 = 7,062.40 : x
  2. Step 2: Convert to fraction form
    11,037.76/15,230.40 = 7,062.40/x
  3. Step 3: Cross multiply
    11,037.76x = 15,230.40 × 7,062.40
  4. Step 4: Simplify right side
    11,037.76x = 107,563,176.96
  5. Step 5: Solve for x
    x = 107,563,176.96/11,037.76
  6. Step 6: Final answer
    x = 9,745.02

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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.