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Finding the Fourth Proportional to 6,468.48, 8,931.15 and 4,475.58

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Solution

The fourth proportional to 6,468.48, 8,931.15 and 4,475.58 is: 6,179.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,468.48 : 8,931.15 = 4,475.58 : x
  2. Step 2: Convert to fraction form
    6,468.48/8,931.15 = 4,475.58/x
  3. Step 3: Cross multiply
    6,468.48x = 8,931.15 × 4,475.58
  4. Step 4: Simplify right side
    6,468.48x = 39,972,076.32
  5. Step 5: Solve for x
    x = 39,972,076.32/6,468.48
  6. Step 6: Final answer
    x = 6,179.52

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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.