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Finding the Fourth Proportional to 22,078.01, 30,478.93 and 17,030.90

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Solution

The fourth proportional to 22,078.01, 30,478.93 and 17,030.90 is: 23,511.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,078.01 : 30,478.93 = 17,030.90 : x
  2. Step 2: Convert to fraction form
    22,078.01/30,478.93 = 17,030.90/x
  3. Step 3: Cross multiply
    22,078.01x = 30,478.93 × 17,030.90
  4. Step 4: Simplify right side
    22,078.01x = 519,083,608.94
  5. Step 5: Solve for x
    x = 519,083,608.94/22,078.01
  6. Step 6: Final answer
    x = 23,511.34

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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.