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Finding the Fourth Proportional to 32,013.55, 48,021.18 and 8,639.92

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Solution

The fourth proportional to 32,013.55, 48,021.18 and 8,639.92 is: 12,960.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,013.55 : 48,021.18 = 8,639.92 : x
  2. Step 2: Convert to fraction form
    32,013.55/48,021.18 = 8,639.92/x
  3. Step 3: Cross multiply
    32,013.55x = 48,021.18 × 8,639.92
  4. Step 4: Simplify right side
    32,013.55x = 414,899,153.51
  5. Step 5: Solve for x
    x = 414,899,153.51/32,013.55
  6. Step 6: Final answer
    x = 12,960.11

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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.