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Finding the Fourth Proportional to 11,873.61, 16,385.64 and 6,568.61

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Solution

The fourth proportional to 11,873.61, 16,385.64 and 6,568.61 is: 9,064.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,873.61 : 16,385.64 = 6,568.61 : x
  2. Step 2: Convert to fraction form
    11,873.61/16,385.64 = 6,568.61/x
  3. Step 3: Cross multiply
    11,873.61x = 16,385.64 × 6,568.61
  4. Step 4: Simplify right side
    11,873.61x = 107,630,878.76
  5. Step 5: Solve for x
    x = 107,630,878.76/11,873.61
  6. Step 6: Final answer
    x = 9,064.72

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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.