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Finding the Fourth Proportional to 18,130.48, 27,200.04 and 7,037.44

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Solution

The fourth proportional to 18,130.48, 27,200.04 and 7,037.44 is: 10,557.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.48 : 27,200.04 = 7,037.44 : x
  2. Step 2: Convert to fraction form
    18,130.48/27,200.04 = 7,037.44/x
  3. Step 3: Cross multiply
    18,130.48x = 27,200.04 × 7,037.44
  4. Step 4: Simplify right side
    18,130.48x = 191,418,649.50
  5. Step 5: Solve for x
    x = 191,418,649.50/18,130.48
  6. Step 6: Final answer
    x = 10,557.84

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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.