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Finding the Fourth Proportional to 18,108.94, 24,989.84 and 10,151.68

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Solution

The fourth proportional to 18,108.94, 24,989.84 and 10,151.68 is: 14,009.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.94 : 24,989.84 = 10,151.68 : x
  2. Step 2: Convert to fraction form
    18,108.94/24,989.84 = 10,151.68/x
  3. Step 3: Cross multiply
    18,108.94x = 24,989.84 × 10,151.68
  4. Step 4: Simplify right side
    18,108.94x = 253,688,858.93
  5. Step 5: Solve for x
    x = 253,688,858.93/18,108.94
  6. Step 6: Final answer
    x = 14,009.04

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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.