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Finding the Fourth Proportional to 32,807.70, 49,211.55 and 18,762.30

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Solution

The fourth proportional to 32,807.70, 49,211.55 and 18,762.30 is: 28,143.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,807.70 : 49,211.55 = 18,762.30 : x
  2. Step 2: Convert to fraction form
    32,807.70/49,211.55 = 18,762.30/x
  3. Step 3: Cross multiply
    32,807.70x = 49,211.55 × 18,762.30
  4. Step 4: Simplify right side
    32,807.70x = 923,321,864.57
  5. Step 5: Solve for x
    x = 923,321,864.57/32,807.70
  6. Step 6: Final answer
    x = 28,143.45

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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.