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Finding the Fourth Proportional to 6,514.76, 8,993.40 and 4,276.64

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Solution

The fourth proportional to 6,514.76, 8,993.40 and 4,276.64 is: 5,903.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,514.76 : 8,993.40 = 4,276.64 : x
  2. Step 2: Convert to fraction form
    6,514.76/8,993.40 = 4,276.64/x
  3. Step 3: Cross multiply
    6,514.76x = 8,993.40 × 4,276.64
  4. Step 4: Simplify right side
    6,514.76x = 38,461,534.18
  5. Step 5: Solve for x
    x = 38,461,534.18/6,514.76
  6. Step 6: Final answer
    x = 5,903.75

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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.