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Finding the Fourth Proportional to 9,862.31, 13,606.49 and 5,828.28

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Solution

The fourth proportional to 9,862.31, 13,606.49 and 5,828.28 is: 8,040.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,862.31 : 13,606.49 = 5,828.28 : x
  2. Step 2: Convert to fraction form
    9,862.31/13,606.49 = 5,828.28/x
  3. Step 3: Cross multiply
    9,862.31x = 13,606.49 × 5,828.28
  4. Step 4: Simplify right side
    9,862.31x = 79,302,469.20
  5. Step 5: Solve for x
    x = 79,302,469.20/9,862.31
  6. Step 6: Final answer
    x = 8,040.96

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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.