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Finding the Fourth Proportional to 22,745.90, 31,365.42 and 17,957.90

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Solution

The fourth proportional to 22,745.90, 31,365.42 and 17,957.90 is: 24,763.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,745.90 : 31,365.42 = 17,957.90 : x
  2. Step 2: Convert to fraction form
    22,745.90/31,365.42 = 17,957.90/x
  3. Step 3: Cross multiply
    22,745.90x = 31,365.42 × 17,957.90
  4. Step 4: Simplify right side
    22,745.90x = 563,257,075.82
  5. Step 5: Solve for x
    x = 563,257,075.82/22,745.90
  6. Step 6: Final answer
    x = 24,763.02

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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.