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Finding the Fourth Proportional to 18,015.72, 24,860.55 and 10,056.39

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Solution

The fourth proportional to 18,015.72, 24,860.55 and 10,056.39 is: 13,877.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.72 : 24,860.55 = 10,056.39 : x
  2. Step 2: Convert to fraction form
    18,015.72/24,860.55 = 10,056.39/x
  3. Step 3: Cross multiply
    18,015.72x = 24,860.55 × 10,056.39
  4. Step 4: Simplify right side
    18,015.72x = 250,007,386.41
  5. Step 5: Solve for x
    x = 250,007,386.41/18,015.72
  6. Step 6: Final answer
    x = 13,877.18

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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.