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Finding the Fourth Proportional to 11,811.01, 16,298.98 and 6,506.32

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Solution

The fourth proportional to 11,811.01, 16,298.98 and 6,506.32 is: 8,978.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.01 : 16,298.98 = 6,506.32 : x
  2. Step 2: Convert to fraction form
    11,811.01/16,298.98 = 6,506.32/x
  3. Step 3: Cross multiply
    11,811.01x = 16,298.98 × 6,506.32
  4. Step 4: Simplify right side
    11,811.01x = 106,046,379.55
  5. Step 5: Solve for x
    x = 106,046,379.55/11,811.01
  6. Step 6: Final answer
    x = 8,978.60

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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.