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Finding the Fourth Proportional to 35,338.71, 48,765.20 and 19,421.67

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Solution

The fourth proportional to 35,338.71, 48,765.20 and 19,421.67 is: 26,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,338.71 : 48,765.20 = 19,421.67 : x
  2. Step 2: Convert to fraction form
    35,338.71/48,765.20 = 19,421.67/x
  3. Step 3: Cross multiply
    35,338.71x = 48,765.20 × 19,421.67
  4. Step 4: Simplify right side
    35,338.71x = 947,101,524.78
  5. Step 5: Solve for x
    x = 947,101,524.78/35,338.71
  6. Step 6: Final answer
    x = 26,800.68

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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.