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Finding the Fourth Proportional to 15,068.05, 20,794.07 and 8,353.81

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Solution

The fourth proportional to 15,068.05, 20,794.07 and 8,353.81 is: 11,528.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,068.05 : 20,794.07 = 8,353.81 : x
  2. Step 2: Convert to fraction form
    15,068.05/20,794.07 = 8,353.81/x
  3. Step 3: Cross multiply
    15,068.05x = 20,794.07 × 8,353.81
  4. Step 4: Simplify right side
    15,068.05x = 173,709,709.91
  5. Step 5: Solve for x
    x = 173,709,709.91/15,068.05
  6. Step 6: Final answer
    x = 11,528.35

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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.