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Finding the Fourth Proportional to 15,597.64, 21,525.07 and 8,793.80

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Solution

The fourth proportional to 15,597.64, 21,525.07 and 8,793.80 is: 12,135.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,597.64 : 21,525.07 = 8,793.80 : x
  2. Step 2: Convert to fraction form
    15,597.64/21,525.07 = 8,793.80/x
  3. Step 3: Cross multiply
    15,597.64x = 21,525.07 × 8,793.80
  4. Step 4: Simplify right side
    15,597.64x = 189,287,113.67
  5. Step 5: Solve for x
    x = 189,287,113.67/15,597.64
  6. Step 6: Final answer
    x = 12,135.62

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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.