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Finding the Fourth Proportional to 25,224, 34,816.26 and 15,155.64

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Solution

The fourth proportional to 25,224, 34,816.26 and 15,155.64 is: 20,919.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,224 : 34,816.26 = 15,155.64 : x
  2. Step 2: Convert to fraction form
    25,224/34,816.26 = 15,155.64/x
  3. Step 3: Cross multiply
    25,224x = 34,816.26 × 15,155.64
  4. Step 4: Simplify right side
    25,224x = 527,662,702.71
  5. Step 5: Solve for x
    x = 527,662,702.71/25,224
  6. Step 6: Final answer
    x = 20,919.07

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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.