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Finding the Fourth Proportional to 25,794.13, 35,602.22 and 15,728.12

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Solution

The fourth proportional to 25,794.13, 35,602.22 and 15,728.12 is: 21,708.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,794.13 : 35,602.22 = 15,728.12 : x
  2. Step 2: Convert to fraction form
    25,794.13/35,602.22 = 15,728.12/x
  3. Step 3: Cross multiply
    25,794.13x = 35,602.22 × 15,728.12
  4. Step 4: Simplify right side
    25,794.13x = 559,955,988.43
  5. Step 5: Solve for x
    x = 559,955,988.43/25,794.13
  6. Step 6: Final answer
    x = 21,708.66

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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.