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Finding the Fourth Proportional to 19,630.50, 27,090.09 and 10,798.50

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Solution

The fourth proportional to 19,630.50, 27,090.09 and 10,798.50 is: 14,901.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,630.50 : 27,090.09 = 10,798.50 : x
  2. Step 2: Convert to fraction form
    19,630.50/27,090.09 = 10,798.50/x
  3. Step 3: Cross multiply
    19,630.50x = 27,090.09 × 10,798.50
  4. Step 4: Simplify right side
    19,630.50x = 292,532,336.87
  5. Step 5: Solve for x
    x = 292,532,336.87/19,630.50
  6. Step 6: Final answer
    x = 14,901.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.