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Finding the Fourth Proportional to 32,611.06, 48,916.05 and 12,889.78

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Solution

The fourth proportional to 32,611.06, 48,916.05 and 12,889.78 is: 19,334.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,611.06 : 48,916.05 = 12,889.78 : x
  2. Step 2: Convert to fraction form
    32,611.06/48,916.05 = 12,889.78/x
  3. Step 3: Cross multiply
    32,611.06x = 48,916.05 × 12,889.78
  4. Step 4: Simplify right side
    32,611.06x = 630,517,300.00
  5. Step 5: Solve for x
    x = 630,517,300.00/32,611.06
  6. Step 6: Final answer
    x = 19,334.46

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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.