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Finding the Fourth Proportional to 22,203.48, 30,642.93 and 12,133.45

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Solution

The fourth proportional to 22,203.48, 30,642.93 and 12,133.45 is: 16,745.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,203.48 : 30,642.93 = 12,133.45 : x
  2. Step 2: Convert to fraction form
    22,203.48/30,642.93 = 12,133.45/x
  3. Step 3: Cross multiply
    22,203.48x = 30,642.93 × 12,133.45
  4. Step 4: Simplify right side
    22,203.48x = 371,804,382.40
  5. Step 5: Solve for x
    x = 371,804,382.40/22,203.48
  6. Step 6: Final answer
    x = 16,745.32

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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.