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Finding the Fourth Proportional to 7,907.92, 11,862.16 and 2,064.32

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Solution

The fourth proportional to 7,907.92, 11,862.16 and 2,064.32 is: 3,096.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.92 : 11,862.16 = 2,064.32 : x
  2. Step 2: Convert to fraction form
    7,907.92/11,862.16 = 2,064.32/x
  3. Step 3: Cross multiply
    7,907.92x = 11,862.16 × 2,064.32
  4. Step 4: Simplify right side
    7,907.92x = 24,487,294.13
  5. Step 5: Solve for x
    x = 24,487,294.13/7,907.92
  6. Step 6: Final answer
    x = 3,096.55

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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.