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Finding the Fourth Proportional to 9,815.18, 13,549.97 and 7,572.02

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Solution

The fourth proportional to 9,815.18, 13,549.97 and 7,572.02 is: 10,453.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815.18 : 13,549.97 = 7,572.02 : x
  2. Step 2: Convert to fraction form
    9,815.18/13,549.97 = 7,572.02/x
  3. Step 3: Cross multiply
    9,815.18x = 13,549.97 × 7,572.02
  4. Step 4: Simplify right side
    9,815.18x = 102,600,605.98
  5. Step 5: Solve for x
    x = 102,600,605.98/9,815.18
  6. Step 6: Final answer
    x = 10,453.26

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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.