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Finding the Fourth Proportional to 20,597.92, 28,403.80 and 17,623.60

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Solution

The fourth proportional to 20,597.92, 28,403.80 and 17,623.60 is: 24,302.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,597.92 : 28,403.80 = 17,623.60 : x
  2. Step 2: Convert to fraction form
    20,597.92/28,403.80 = 17,623.60/x
  3. Step 3: Cross multiply
    20,597.92x = 28,403.80 × 17,623.60
  4. Step 4: Simplify right side
    20,597.92x = 500,577,209.68
  5. Step 5: Solve for x
    x = 500,577,209.68/20,597.92
  6. Step 6: Final answer
    x = 24,302.32

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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.