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Finding the Fourth Proportional to 8,953.73, 12,352.80 and 5,549.19

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Solution

The fourth proportional to 8,953.73, 12,352.80 and 5,549.19 is: 7,655.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,953.73 : 12,352.80 = 5,549.19 : x
  2. Step 2: Convert to fraction form
    8,953.73/12,352.80 = 5,549.19/x
  3. Step 3: Cross multiply
    8,953.73x = 12,352.80 × 5,549.19
  4. Step 4: Simplify right side
    8,953.73x = 68,548,034.23
  5. Step 5: Solve for x
    x = 68,548,034.23/8,953.73
  6. Step 6: Final answer
    x = 7,655.81

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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.