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Finding the Fourth Proportional to 9,326.76, 12,869.28 and 7,555.32

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Solution

The fourth proportional to 9,326.76, 12,869.28 and 7,555.32 is: 10,425.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,326.76 : 12,869.28 = 7,555.32 : x
  2. Step 2: Convert to fraction form
    9,326.76/12,869.28 = 7,555.32/x
  3. Step 3: Cross multiply
    9,326.76x = 12,869.28 × 7,555.32
  4. Step 4: Simplify right side
    9,326.76x = 97,231,528.57
  5. Step 5: Solve for x
    x = 97,231,528.57/9,326.76
  6. Step 6: Final answer
    x = 10,425.01

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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.