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Finding the Fourth Proportional to 25,670.36, 35,425.08 and 15,602.04

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Solution

The fourth proportional to 25,670.36, 35,425.08 and 15,602.04 is: 21,530.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,670.36 : 35,425.08 = 15,602.04 : x
  2. Step 2: Convert to fraction form
    25,670.36/35,425.08 = 15,602.04/x
  3. Step 3: Cross multiply
    25,670.36x = 35,425.08 × 15,602.04
  4. Step 4: Simplify right side
    25,670.36x = 552,703,515.16
  5. Step 5: Solve for x
    x = 552,703,515.16/25,670.36
  6. Step 6: Final answer
    x = 21,530.81

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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.