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Finding the Fourth Proportional to 25,906.42, 35,750.09 and 15,703.50

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Solution

The fourth proportional to 25,906.42, 35,750.09 and 15,703.50 is: 21,670.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,906.42 : 35,750.09 = 15,703.50 : x
  2. Step 2: Convert to fraction form
    25,906.42/35,750.09 = 15,703.50/x
  3. Step 3: Cross multiply
    25,906.42x = 35,750.09 × 15,703.50
  4. Step 4: Simplify right side
    25,906.42x = 561,401,538.32
  5. Step 5: Solve for x
    x = 561,401,538.32/25,906.42
  6. Step 6: Final answer
    x = 21,670.36

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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.