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Finding the Fourth Proportional to 18,700.44, 28,066.80 and 9,822.01

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Solution

The fourth proportional to 18,700.44, 28,066.80 and 9,822.01 is: 14,741.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,700.44 : 28,066.80 = 9,822.01 : x
  2. Step 2: Convert to fraction form
    18,700.44/28,066.80 = 9,822.01/x
  3. Step 3: Cross multiply
    18,700.44x = 28,066.80 × 9,822.01
  4. Step 4: Simplify right side
    18,700.44x = 275,672,390.27
  5. Step 5: Solve for x
    x = 275,672,390.27/18,700.44
  6. Step 6: Final answer
    x = 14,741.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.