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Finding the Fourth Proportional to 19,505.88, 26,918.04 and 10,553.40

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Solution

The fourth proportional to 19,505.88, 26,918.04 and 10,553.40 is: 14,563.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,505.88 : 26,918.04 = 10,553.40 : x
  2. Step 2: Convert to fraction form
    19,505.88/26,918.04 = 10,553.40/x
  3. Step 3: Cross multiply
    19,505.88x = 26,918.04 × 10,553.40
  4. Step 4: Simplify right side
    19,505.88x = 284,076,843.34
  5. Step 5: Solve for x
    x = 284,076,843.34/19,505.88
  6. Step 6: Final answer
    x = 14,563.65

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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.