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Finding the Fourth Proportional to 9,128.66, 13,693.01 and 2,554.92

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Solution

The fourth proportional to 9,128.66, 13,693.01 and 2,554.92 is: 3,832.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.66 : 13,693.01 = 2,554.92 : x
  2. Step 2: Convert to fraction form
    9,128.66/13,693.01 = 2,554.92/x
  3. Step 3: Cross multiply
    9,128.66x = 13,693.01 × 2,554.92
  4. Step 4: Simplify right side
    9,128.66x = 34,984,532.33
  5. Step 5: Solve for x
    x = 34,984,532.33/9,128.66
  6. Step 6: Final answer
    x = 3,832.39

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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.