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Finding the Fourth Proportional to 10,955.66, 16,408.88 and 10,586.60

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Solution

The fourth proportional to 10,955.66, 16,408.88 and 10,586.60 is: 15,856.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.66 : 16,408.88 = 10,586.60 : x
  2. Step 2: Convert to fraction form
    10,955.66/16,408.88 = 10,586.60/x
  3. Step 3: Cross multiply
    10,955.66x = 16,408.88 × 10,586.60
  4. Step 4: Simplify right side
    10,955.66x = 173,714,215.26
  5. Step 5: Solve for x
    x = 173,714,215.26/10,955.66
  6. Step 6: Final answer
    x = 15,856.12

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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.