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Finding the Fourth Proportional to 23,718.80, 32,734.48 and 13,647.68

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Solution

The fourth proportional to 23,718.80, 32,734.48 and 13,647.68 is: 18,835.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,718.80 : 32,734.48 = 13,647.68 : x
  2. Step 2: Convert to fraction form
    23,718.80/32,734.48 = 13,647.68/x
  3. Step 3: Cross multiply
    23,718.80x = 32,734.48 × 13,647.68
  4. Step 4: Simplify right side
    23,718.80x = 446,749,708.01
  5. Step 5: Solve for x
    x = 446,749,708.01/23,718.80
  6. Step 6: Final answer
    x = 18,835.26

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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.