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Finding the Fourth Proportional to 15,794.58, 21,795.84 and 9,079.68

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Solution

The fourth proportional to 15,794.58, 21,795.84 and 9,079.68 is: 12,529.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,794.58 : 21,795.84 = 9,079.68 : x
  2. Step 2: Convert to fraction form
    15,794.58/21,795.84 = 9,079.68/x
  3. Step 3: Cross multiply
    15,794.58x = 21,795.84 × 9,079.68
  4. Step 4: Simplify right side
    15,794.58x = 197,899,252.53
  5. Step 5: Solve for x
    x = 197,899,252.53/15,794.58
  6. Step 6: Final answer
    x = 12,529.57

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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.