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Finding the Fourth Proportional to 9,899.52, 13,574.64 and 9,568.32

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Solution

The fourth proportional to 9,899.52, 13,574.64 and 9,568.32 is: 13,120.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.52 : 13,574.64 = 9,568.32 : x
  2. Step 2: Convert to fraction form
    9,899.52/13,574.64 = 9,568.32/x
  3. Step 3: Cross multiply
    9,899.52x = 13,574.64 × 9,568.32
  4. Step 4: Simplify right side
    9,899.52x = 129,886,499.40
  5. Step 5: Solve for x
    x = 129,886,499.40/9,899.52
  6. Step 6: Final answer
    x = 13,120.48

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.