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Finding the Fourth Proportional to 13,801.58, 20,702.70 and 5,036.49

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Solution

The fourth proportional to 13,801.58, 20,702.70 and 5,036.49 is: 7,554.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.58 : 20,702.70 = 5,036.49 : x
  2. Step 2: Convert to fraction form
    13,801.58/20,702.70 = 5,036.49/x
  3. Step 3: Cross multiply
    13,801.58x = 20,702.70 × 5,036.49
  4. Step 4: Simplify right side
    13,801.58x = 104,268,838.01
  5. Step 5: Solve for x
    x = 104,268,838.01/13,801.58
  6. Step 6: Final answer
    x = 7,554.85

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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.