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Finding the Fourth Proportional to 17,732.60, 26,598.90 and 5,420.60

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Solution

The fourth proportional to 17,732.60, 26,598.90 and 5,420.60 is: 8,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,732.60 : 26,598.90 = 5,420.60 : x
  2. Step 2: Convert to fraction form
    17,732.60/26,598.90 = 5,420.60/x
  3. Step 3: Cross multiply
    17,732.60x = 26,598.90 × 5,420.60
  4. Step 4: Simplify right side
    17,732.60x = 144,181,997.34
  5. Step 5: Solve for x
    x = 144,181,997.34/17,732.60
  6. Step 6: Final answer
    x = 8,130.90

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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.