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Finding the Fourth Proportional to 35,343, 48,774.62 and 20,238.36

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Solution

The fourth proportional to 35,343, 48,774.62 and 20,238.36 is: 27,929.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,343 : 48,774.62 = 20,238.36 : x
  2. Step 2: Convert to fraction form
    35,343/48,774.62 = 20,238.36/x
  3. Step 3: Cross multiply
    35,343x = 48,774.62 × 20,238.36
  4. Step 4: Simplify right side
    35,343x = 987,118,318.42
  5. Step 5: Solve for x
    x = 987,118,318.42/35,343
  6. Step 6: Final answer
    x = 27,929.67

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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.