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Finding the Fourth Proportional to 18,056.64, 24,922.80 and 10,988.04

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Solution

The fourth proportional to 18,056.64, 24,922.80 and 10,988.04 is: 15,166.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,056.64 : 24,922.80 = 10,988.04 : x
  2. Step 2: Convert to fraction form
    18,056.64/24,922.80 = 10,988.04/x
  3. Step 3: Cross multiply
    18,056.64x = 24,922.80 × 10,988.04
  4. Step 4: Simplify right side
    18,056.64x = 273,852,723.31
  5. Step 5: Solve for x
    x = 273,852,723.31/18,056.64
  6. Step 6: Final answer
    x = 15,166.32

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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.