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Finding the Fourth Proportional to 39,866.08, 59,800.16 and 12,164

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Solution

The fourth proportional to 39,866.08, 59,800.16 and 12,164 is: 18,246.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,866.08 : 59,800.16 = 12,164 : x
  2. Step 2: Convert to fraction form
    39,866.08/59,800.16 = 12,164/x
  3. Step 3: Cross multiply
    39,866.08x = 59,800.16 × 12,164
  4. Step 4: Simplify right side
    39,866.08x = 727,409,146.24
  5. Step 5: Solve for x
    x = 727,409,146.24/39,866.08
  6. Step 6: Final answer
    x = 18,246.32

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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.