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Finding the Fourth Proportional to 14,767.48, 20,379.15 and 8,053.15

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Solution

The fourth proportional to 14,767.48, 20,379.15 and 8,053.15 is: 11,113.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,767.48 : 20,379.15 = 8,053.15 : x
  2. Step 2: Convert to fraction form
    14,767.48/20,379.15 = 8,053.15/x
  3. Step 3: Cross multiply
    14,767.48x = 20,379.15 × 8,053.15
  4. Step 4: Simplify right side
    14,767.48x = 164,116,311.56
  5. Step 5: Solve for x
    x = 164,116,311.56/14,767.48
  6. Step 6: Final answer
    x = 11,113.36

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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.