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Finding the Fourth Proportional to 14,393.77, 21,550.80 and 7,358.65

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Solution

The fourth proportional to 14,393.77, 21,550.80 and 7,358.65 is: 11,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,393.77 : 21,550.80 = 7,358.65 : x
  2. Step 2: Convert to fraction form
    14,393.77/21,550.80 = 7,358.65/x
  3. Step 3: Cross multiply
    14,393.77x = 21,550.80 × 7,358.65
  4. Step 4: Simplify right side
    14,393.77x = 158,584,794.42
  5. Step 5: Solve for x
    x = 158,584,794.42/14,393.77
  6. Step 6: Final answer
    x = 11,017.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.