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Finding the Fourth Proportional to 9,654, 13,322.28 and 5,675.22

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Solution

The fourth proportional to 9,654, 13,322.28 and 5,675.22 is: 7,831.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,654 : 13,322.28 = 5,675.22 : x
  2. Step 2: Convert to fraction form
    9,654/13,322.28 = 5,675.22/x
  3. Step 3: Cross multiply
    9,654x = 13,322.28 × 5,675.22
  4. Step 4: Simplify right side
    9,654x = 75,606,869.90
  5. Step 5: Solve for x
    x = 75,606,869.90/9,654
  6. Step 6: Final answer
    x = 7,831.66

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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.