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Finding the Fourth Proportional to 7,655.92, 11,482.96 and 2,391.32

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Solution

The fourth proportional to 7,655.92, 11,482.96 and 2,391.32 is: 3,586.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,655.92 : 11,482.96 = 2,391.32 : x
  2. Step 2: Convert to fraction form
    7,655.92/11,482.96 = 2,391.32/x
  3. Step 3: Cross multiply
    7,655.92x = 11,482.96 × 2,391.32
  4. Step 4: Simplify right side
    7,655.92x = 27,459,431.91
  5. Step 5: Solve for x
    x = 27,459,431.91/7,655.92
  6. Step 6: Final answer
    x = 3,586.69

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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.