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Finding the Fourth Proportional to 6,276.60, 8,658.46 and 4,259.32

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Solution

The fourth proportional to 6,276.60, 8,658.46 and 4,259.32 is: 5,875.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,276.60 : 8,658.46 = 4,259.32 : x
  2. Step 2: Convert to fraction form
    6,276.60/8,658.46 = 4,259.32/x
  3. Step 3: Cross multiply
    6,276.60x = 8,658.46 × 4,259.32
  4. Step 4: Simplify right side
    6,276.60x = 36,879,151.85
  5. Step 5: Solve for x
    x = 36,879,151.85/6,276.60
  6. Step 6: Final answer
    x = 5,875.66

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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.