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Finding the Fourth Proportional to 32,516.64, 48,741.48 and 12,787.20

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Solution

The fourth proportional to 32,516.64, 48,741.48 and 12,787.20 is: 19,167.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,516.64 : 48,741.48 = 12,787.20 : x
  2. Step 2: Convert to fraction form
    32,516.64/48,741.48 = 12,787.20/x
  3. Step 3: Cross multiply
    32,516.64x = 48,741.48 × 12,787.20
  4. Step 4: Simplify right side
    32,516.64x = 623,267,053.06
  5. Step 5: Solve for x
    x = 623,267,053.06/32,516.64
  6. Step 6: Final answer
    x = 19,167.63

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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.