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Finding the Fourth Proportional to 19,290.01, 26,619.13 and 10,790.49

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Solution

The fourth proportional to 19,290.01, 26,619.13 and 10,790.49 is: 14,890.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.01 : 26,619.13 = 10,790.49 : x
  2. Step 2: Convert to fraction form
    19,290.01/26,619.13 = 10,790.49/x
  3. Step 3: Cross multiply
    19,290.01x = 26,619.13 × 10,790.49
  4. Step 4: Simplify right side
    19,290.01x = 287,233,382.22
  5. Step 5: Solve for x
    x = 287,233,382.22/19,290.01
  6. Step 6: Final answer
    x = 14,890.27

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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.