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Finding the Fourth Proportional to 19,525.60, 29,223.60 and 13,693.60

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Solution

The fourth proportional to 19,525.60, 29,223.60 and 13,693.60 is: 20,494.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,525.60 : 29,223.60 = 13,693.60 : x
  2. Step 2: Convert to fraction form
    19,525.60/29,223.60 = 13,693.60/x
  3. Step 3: Cross multiply
    19,525.60x = 29,223.60 × 13,693.60
  4. Step 4: Simplify right side
    19,525.60x = 400,176,288.96
  5. Step 5: Solve for x
    x = 400,176,288.96/19,525.60
  6. Step 6: Final answer
    x = 20,494.95

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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.