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Finding the Fourth Proportional to 19,348.83, 28,791.51 and 19,283.22

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Solution

The fourth proportional to 19,348.83, 28,791.51 and 19,283.22 is: 28,693.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,348.83 : 28,791.51 = 19,283.22 : x
  2. Step 2: Convert to fraction form
    19,348.83/28,791.51 = 19,283.22/x
  3. Step 3: Cross multiply
    19,348.83x = 28,791.51 × 19,283.22
  4. Step 4: Simplify right side
    19,348.83x = 555,193,021.46
  5. Step 5: Solve for x
    x = 555,193,021.46/19,348.83
  6. Step 6: Final answer
    x = 28,693.88

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.