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Finding the Fourth Proportional to 9,558.60, 13,209.12 and 7,196.64

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Solution

The fourth proportional to 9,558.60, 13,209.12 and 7,196.64 is: 9,945.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,558.60 : 13,209.12 = 7,196.64 : x
  2. Step 2: Convert to fraction form
    9,558.60/13,209.12 = 7,196.64/x
  3. Step 3: Cross multiply
    9,558.60x = 13,209.12 × 7,196.64
  4. Step 4: Simplify right side
    9,558.60x = 95,061,281.36
  5. Step 5: Solve for x
    x = 95,061,281.36/9,558.60
  6. Step 6: Final answer
    x = 9,945.11

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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.