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Finding the Fourth Proportional to 7,047.90, 10,572.18 and 5,813.01

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Solution

The fourth proportional to 7,047.90, 10,572.18 and 5,813.01 is: 8,719.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,047.90 : 10,572.18 = 5,813.01 : x
  2. Step 2: Convert to fraction form
    7,047.90/10,572.18 = 5,813.01/x
  3. Step 3: Cross multiply
    7,047.90x = 10,572.18 × 5,813.01
  4. Step 4: Simplify right side
    7,047.90x = 61,456,188.06
  5. Step 5: Solve for x
    x = 61,456,188.06/7,047.90
  6. Step 6: Final answer
    x = 8,719.79

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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.