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Finding the Fourth Proportional to 22,702.51, 33,988.02 and 18,962.74

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Solution

The fourth proportional to 22,702.51, 33,988.02 and 18,962.74 is: 28,389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,702.51 : 33,988.02 = 18,962.74 : x
  2. Step 2: Convert to fraction form
    22,702.51/33,988.02 = 18,962.74/x
  3. Step 3: Cross multiply
    22,702.51x = 33,988.02 × 18,962.74
  4. Step 4: Simplify right side
    22,702.51x = 644,505,986.37
  5. Step 5: Solve for x
    x = 644,505,986.37/22,702.51
  6. Step 6: Final answer
    x = 28,389.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.