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Finding the Fourth Proportional to 8,994.30, 13,421.10 and 8,060.34

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Solution

The fourth proportional to 8,994.30, 13,421.10 and 8,060.34 is: 12,027.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.30 : 13,421.10 = 8,060.34 : x
  2. Step 2: Convert to fraction form
    8,994.30/13,421.10 = 8,060.34/x
  3. Step 3: Cross multiply
    8,994.30x = 13,421.10 × 8,060.34
  4. Step 4: Simplify right side
    8,994.30x = 108,178,629.17
  5. Step 5: Solve for x
    x = 108,178,629.17/8,994.30
  6. Step 6: Final answer
    x = 12,027.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.