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Finding the Fourth Proportional to 25,799.72, 38,699.62 and 7,080.01

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Solution

The fourth proportional to 25,799.72, 38,699.62 and 7,080.01 is: 10,620.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,799.72 : 38,699.62 = 7,080.01 : x
  2. Step 2: Convert to fraction form
    25,799.72/38,699.62 = 7,080.01/x
  3. Step 3: Cross multiply
    25,799.72x = 38,699.62 × 7,080.01
  4. Step 4: Simplify right side
    25,799.72x = 273,993,696.60
  5. Step 5: Solve for x
    x = 273,993,696.60/25,799.72
  6. Step 6: Final answer
    x = 10,620.03

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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.