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Finding the Fourth Proportional to 10,715.88, 14,788.08 and 6,467.16

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Solution

The fourth proportional to 10,715.88, 14,788.08 and 6,467.16 is: 8,924.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,715.88 : 14,788.08 = 6,467.16 : x
  2. Step 2: Convert to fraction form
    10,715.88/14,788.08 = 6,467.16/x
  3. Step 3: Cross multiply
    10,715.88x = 14,788.08 × 6,467.16
  4. Step 4: Simplify right side
    10,715.88x = 95,636,879.45
  5. Step 5: Solve for x
    x = 95,636,879.45/10,715.88
  6. Step 6: Final answer
    x = 8,924.78

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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.