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Finding the Fourth Proportional to 6,961.32, 9,606.60 and 4,130.64

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Solution

The fourth proportional to 6,961.32, 9,606.60 and 4,130.64 is: 5,700.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,961.32 : 9,606.60 = 4,130.64 : x
  2. Step 2: Convert to fraction form
    6,961.32/9,606.60 = 4,130.64/x
  3. Step 3: Cross multiply
    6,961.32x = 9,606.60 × 4,130.64
  4. Step 4: Simplify right side
    6,961.32x = 39,681,406.22
  5. Step 5: Solve for x
    x = 39,681,406.22/6,961.32
  6. Step 6: Final answer
    x = 5,700.27

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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.