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Finding the Fourth Proportional to 4,983.76, 7,430.95 and 4,803.68

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Solution

The fourth proportional to 4,983.76, 7,430.95 and 4,803.68 is: 7,162.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,983.76 : 7,430.95 = 4,803.68 : x
  2. Step 2: Convert to fraction form
    4,983.76/7,430.95 = 4,803.68/x
  3. Step 3: Cross multiply
    4,983.76x = 7,430.95 × 4,803.68
  4. Step 4: Simplify right side
    4,983.76x = 35,695,856.73
  5. Step 5: Solve for x
    x = 35,695,856.73/4,983.76
  6. Step 6: Final answer
    x = 7,162.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.