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Finding the Fourth Proportional to 9,265.01, 12,785.87 and 5,072.99

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Solution

The fourth proportional to 9,265.01, 12,785.87 and 5,072.99 is: 7,000.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,265.01 : 12,785.87 = 5,072.99 : x
  2. Step 2: Convert to fraction form
    9,265.01/12,785.87 = 5,072.99/x
  3. Step 3: Cross multiply
    9,265.01x = 12,785.87 × 5,072.99
  4. Step 4: Simplify right side
    9,265.01x = 64,862,565.29
  5. Step 5: Solve for x
    x = 64,862,565.29/9,265.01
  6. Step 6: Final answer
    x = 7,000.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.