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Finding the Fourth Proportional to 38,355.76, 57,536.76 and 10,653.76

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Solution

The fourth proportional to 38,355.76, 57,536.76 and 10,653.76 is: 15,981.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,355.76 : 57,536.76 = 10,653.76 : x
  2. Step 2: Convert to fraction form
    38,355.76/57,536.76 = 10,653.76/x
  3. Step 3: Cross multiply
    38,355.76x = 57,536.76 × 10,653.76
  4. Step 4: Simplify right side
    38,355.76x = 612,982,832.22
  5. Step 5: Solve for x
    x = 612,982,832.22/38,355.76
  6. Step 6: Final answer
    x = 15,981.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.