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Finding the Fourth Proportional to 14,115.93, 19,479.20 and 8,065.94

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Solution

The fourth proportional to 14,115.93, 19,479.20 and 8,065.94 is: 11,130.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.93 : 19,479.20 = 8,065.94 : x
  2. Step 2: Convert to fraction form
    14,115.93/19,479.20 = 8,065.94/x
  3. Step 3: Cross multiply
    14,115.93x = 19,479.20 × 8,065.94
  4. Step 4: Simplify right side
    14,115.93x = 157,118,127.31
  5. Step 5: Solve for x
    x = 157,118,127.31/14,115.93
  6. Step 6: Final answer
    x = 11,130.55

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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.