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Finding the Fourth Proportional to 14,768.19, 20,379.80 and 8,053.86

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Solution

The fourth proportional to 14,768.19, 20,379.80 and 8,053.86 is: 11,114.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,768.19 : 20,379.80 = 8,053.86 : x
  2. Step 2: Convert to fraction form
    14,768.19/20,379.80 = 8,053.86/x
  3. Step 3: Cross multiply
    14,768.19x = 20,379.80 × 8,053.86
  4. Step 4: Simplify right side
    14,768.19x = 164,136,152.59
  5. Step 5: Solve for x
    x = 164,136,152.59/14,768.19
  6. Step 6: Final answer
    x = 11,114.17

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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.