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Finding the Fourth Proportional to 10,808.34, 14,902.08 and 9,018.44

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Solution

The fourth proportional to 10,808.34, 14,902.08 and 9,018.44 is: 12,434.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,808.34 : 14,902.08 = 9,018.44 : x
  2. Step 2: Convert to fraction form
    10,808.34/14,902.08 = 9,018.44/x
  3. Step 3: Cross multiply
    10,808.34x = 14,902.08 × 9,018.44
  4. Step 4: Simplify right side
    10,808.34x = 134,393,461.91
  5. Step 5: Solve for x
    x = 134,393,461.91/10,808.34
  6. Step 6: Final answer
    x = 12,434.24

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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.