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Finding the Fourth Proportional to 8,408.61, 11,602.98 and 5,051.43

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Solution

The fourth proportional to 8,408.61, 11,602.98 and 5,051.43 is: 6,970.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.61 : 11,602.98 = 5,051.43 : x
  2. Step 2: Convert to fraction form
    8,408.61/11,602.98 = 5,051.43/x
  3. Step 3: Cross multiply
    8,408.61x = 11,602.98 × 5,051.43
  4. Step 4: Simplify right side
    8,408.61x = 58,611,641.26
  5. Step 5: Solve for x
    x = 58,611,641.26/8,408.61
  6. Step 6: Final answer
    x = 6,970.43

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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.