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Finding the Fourth Proportional to 9,047, 12,483.81 and 5,270.99

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Solution

The fourth proportional to 9,047, 12,483.81 and 5,270.99 is: 7,273.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,047 : 12,483.81 = 5,270.99 : x
  2. Step 2: Convert to fraction form
    9,047/12,483.81 = 5,270.99/x
  3. Step 3: Cross multiply
    9,047x = 12,483.81 × 5,270.99
  4. Step 4: Simplify right side
    9,047x = 65,802,037.67
  5. Step 5: Solve for x
    x = 65,802,037.67/9,047
  6. Step 6: Final answer
    x = 7,273.35

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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.