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Finding the Fourth Proportional to 6,606.64, 9,118.04 and 4,255.64

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Solution

The fourth proportional to 6,606.64, 9,118.04 and 4,255.64 is: 5,873.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,606.64 : 9,118.04 = 4,255.64 : x
  2. Step 2: Convert to fraction form
    6,606.64/9,118.04 = 4,255.64/x
  3. Step 3: Cross multiply
    6,606.64x = 9,118.04 × 4,255.64
  4. Step 4: Simplify right side
    6,606.64x = 38,803,095.75
  5. Step 5: Solve for x
    x = 38,803,095.75/6,606.64
  6. Step 6: Final answer
    x = 5,873.35

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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.