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Finding the Fourth Proportional to 9,326.64, 12,869.84 and 7,562.56

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Solution

The fourth proportional to 9,326.64, 12,869.84 and 7,562.56 is: 10,435.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,326.64 : 12,869.84 = 7,562.56 : x
  2. Step 2: Convert to fraction form
    9,326.64/12,869.84 = 7,562.56/x
  3. Step 3: Cross multiply
    9,326.64x = 12,869.84 × 7,562.56
  4. Step 4: Simplify right side
    9,326.64x = 97,328,937.19
  5. Step 5: Solve for x
    x = 97,328,937.19/9,326.64
  6. Step 6: Final answer
    x = 10,435.58

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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.