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Finding the Fourth Proportional to 15,021.64, 22,513.02 and 7,226.20

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Solution

The fourth proportional to 15,021.64, 22,513.02 and 7,226.20 is: 10,829.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,021.64 : 22,513.02 = 7,226.20 : x
  2. Step 2: Convert to fraction form
    15,021.64/22,513.02 = 7,226.20/x
  3. Step 3: Cross multiply
    15,021.64x = 22,513.02 × 7,226.20
  4. Step 4: Simplify right side
    15,021.64x = 162,683,585.12
  5. Step 5: Solve for x
    x = 162,683,585.12/15,021.64
  6. Step 6: Final answer
    x = 10,829.95

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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.