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Finding the Fourth Proportional to 8,874.12, 13,298.64 and 4,927.12

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Solution

The fourth proportional to 8,874.12, 13,298.64 and 4,927.12 is: 7,383.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,874.12 : 13,298.64 = 4,927.12 : x
  2. Step 2: Convert to fraction form
    8,874.12/13,298.64 = 4,927.12/x
  3. Step 3: Cross multiply
    8,874.12x = 13,298.64 × 4,927.12
  4. Step 4: Simplify right side
    8,874.12x = 65,523,995.12
  5. Step 5: Solve for x
    x = 65,523,995.12/8,874.12
  6. Step 6: Final answer
    x = 7,383.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.