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Finding the Fourth Proportional to 15,598.80, 21,525.84 and 8,525.16

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Solution

The fourth proportional to 15,598.80, 21,525.84 and 8,525.16 is: 11,764.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,598.80 : 21,525.84 = 8,525.16 : x
  2. Step 2: Convert to fraction form
    15,598.80/21,525.84 = 8,525.16/x
  3. Step 3: Cross multiply
    15,598.80x = 21,525.84 × 8,525.16
  4. Step 4: Simplify right side
    15,598.80x = 183,511,230.13
  5. Step 5: Solve for x
    x = 183,511,230.13/15,598.80
  6. Step 6: Final answer
    x = 11,764.45

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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.