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Finding the Fourth Proportional to 18,607.98, 25,675.02 and 11,056.86

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Solution

The fourth proportional to 18,607.98, 25,675.02 and 11,056.86 is: 15,256.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.98 : 25,675.02 = 11,056.86 : x
  2. Step 2: Convert to fraction form
    18,607.98/25,675.02 = 11,056.86/x
  3. Step 3: Cross multiply
    18,607.98x = 25,675.02 × 11,056.86
  4. Step 4: Simplify right side
    18,607.98x = 283,885,101.64
  5. Step 5: Solve for x
    x = 283,885,101.64/18,607.98
  6. Step 6: Final answer
    x = 15,256.09

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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.