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Finding the Fourth Proportional to 10,466.85, 15,683.86 and 8,900.41

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Solution

The fourth proportional to 10,466.85, 15,683.86 and 8,900.41 is: 13,336.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,466.85 : 15,683.86 = 8,900.41 : x
  2. Step 2: Convert to fraction form
    10,466.85/15,683.86 = 8,900.41/x
  3. Step 3: Cross multiply
    10,466.85x = 15,683.86 × 8,900.41
  4. Step 4: Simplify right side
    10,466.85x = 139,592,784.38
  5. Step 5: Solve for x
    x = 139,592,784.38/10,466.85
  6. Step 6: Final answer
    x = 13,336.66

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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.