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Finding the Fourth Proportional to 9,312.15, 12,850.62 and 5,063.30

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Solution

The fourth proportional to 9,312.15, 12,850.62 and 5,063.30 is: 6,987.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,312.15 : 12,850.62 = 5,063.30 : x
  2. Step 2: Convert to fraction form
    9,312.15/12,850.62 = 5,063.30/x
  3. Step 3: Cross multiply
    9,312.15x = 12,850.62 × 5,063.30
  4. Step 4: Simplify right side
    9,312.15x = 65,066,479.99
  5. Step 5: Solve for x
    x = 65,066,479.99/9,312.15
  6. Step 6: Final answer
    x = 6,987.27

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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.