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Finding the Fourth Proportional to 18,492.60, 25,552.28 and 16,130.64

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Solution

The fourth proportional to 18,492.60, 25,552.28 and 16,130.64 is: 22,288.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.60 : 25,552.28 = 16,130.64 : x
  2. Step 2: Convert to fraction form
    18,492.60/25,552.28 = 16,130.64/x
  3. Step 3: Cross multiply
    18,492.60x = 25,552.28 × 16,130.64
  4. Step 4: Simplify right side
    18,492.60x = 412,174,629.86
  5. Step 5: Solve for x
    x = 412,174,629.86/18,492.60
  6. Step 6: Final answer
    x = 22,288.63

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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.