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Finding the Fourth Proportional to 49,999.64, 74,999.86 and 14,939.60

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Solution

The fourth proportional to 49,999.64, 74,999.86 and 14,939.60 is: 22,409.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,999.64 : 74,999.86 = 14,939.60 : x
  2. Step 2: Convert to fraction form
    49,999.64/74,999.86 = 14,939.60/x
  3. Step 3: Cross multiply
    49,999.64x = 74,999.86 × 14,939.60
  4. Step 4: Simplify right side
    49,999.64x = 1,120,467,908.46
  5. Step 5: Solve for x
    x = 1,120,467,908.46/49,999.64
  6. Step 6: Final answer
    x = 22,409.52

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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.