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Finding the Fourth Proportional to 9,855.18, 13,605.17 and 7,612.02

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Solution

The fourth proportional to 9,855.18, 13,605.17 and 7,612.02 is: 10,508.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,855.18 : 13,605.17 = 7,612.02 : x
  2. Step 2: Convert to fraction form
    9,855.18/13,605.17 = 7,612.02/x
  3. Step 3: Cross multiply
    9,855.18x = 13,605.17 × 7,612.02
  4. Step 4: Simplify right side
    9,855.18x = 103,562,788.08
  5. Step 5: Solve for x
    x = 103,562,788.08/9,855.18
  6. Step 6: Final answer
    x = 10,508.46

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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.