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Finding the Fourth Proportional to 23,719.40, 35,580.90 and 7,078.13

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Solution

The fourth proportional to 23,719.40, 35,580.90 and 7,078.13 is: 10,617.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,719.40 : 35,580.90 = 7,078.13 : x
  2. Step 2: Convert to fraction form
    23,719.40/35,580.90 = 7,078.13/x
  3. Step 3: Cross multiply
    23,719.40x = 35,580.90 × 7,078.13
  4. Step 4: Simplify right side
    23,719.40x = 251,846,235.72
  5. Step 5: Solve for x
    x = 251,846,235.72/23,719.40
  6. Step 6: Final answer
    x = 10,617.73

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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.