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Finding the Fourth Proportional to 19,483.89, 29,231.53 and 7,003.64

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Solution

The fourth proportional to 19,483.89, 29,231.53 and 7,003.64 is: 10,507.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,483.89 : 29,231.53 = 7,003.64 : x
  2. Step 2: Convert to fraction form
    19,483.89/29,231.53 = 7,003.64/x
  3. Step 3: Cross multiply
    19,483.89x = 29,231.53 × 7,003.64
  4. Step 4: Simplify right side
    19,483.89x = 204,727,125.52
  5. Step 5: Solve for x
    x = 204,727,125.52/19,483.89
  6. Step 6: Final answer
    x = 10,507.51

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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.