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Finding the Fourth Proportional to 16,379.12, 22,602.96 and 8,927.12

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Solution

The fourth proportional to 16,379.12, 22,602.96 and 8,927.12 is: 12,319.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,379.12 : 22,602.96 = 8,927.12 : x
  2. Step 2: Convert to fraction form
    16,379.12/22,602.96 = 8,927.12/x
  3. Step 3: Cross multiply
    16,379.12x = 22,602.96 × 8,927.12
  4. Step 4: Simplify right side
    16,379.12x = 201,779,336.28
  5. Step 5: Solve for x
    x = 201,779,336.28/16,379.12
  6. Step 6: Final answer
    x = 12,319.30

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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.