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Finding the Fourth Proportional to 19,079.04, 28,624.56 and 8,558.04

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Solution

The fourth proportional to 19,079.04, 28,624.56 and 8,558.04 is: 12,839.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,079.04 : 28,624.56 = 8,558.04 : x
  2. Step 2: Convert to fraction form
    19,079.04/28,624.56 = 8,558.04/x
  3. Step 3: Cross multiply
    19,079.04x = 28,624.56 × 8,558.04
  4. Step 4: Simplify right side
    19,079.04x = 244,970,129.46
  5. Step 5: Solve for x
    x = 244,970,129.46/19,079.04
  6. Step 6: Final answer
    x = 12,839.75

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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.