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Finding the Fourth Proportional to 9,653.60, 13,322.04 and 5,461.76

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Solution

The fourth proportional to 9,653.60, 13,322.04 and 5,461.76 is: 7,537.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,653.60 : 13,322.04 = 5,461.76 : x
  2. Step 2: Convert to fraction form
    9,653.60/13,322.04 = 5,461.76/x
  3. Step 3: Cross multiply
    9,653.60x = 13,322.04 × 5,461.76
  4. Step 4: Simplify right side
    9,653.60x = 72,761,785.19
  5. Step 5: Solve for x
    x = 72,761,785.19/9,653.60
  6. Step 6: Final answer
    x = 7,537.27

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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.