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Finding the Fourth Proportional to 9,805.49, 13,531.02 and 5,824.07

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Solution

The fourth proportional to 9,805.49, 13,531.02 and 5,824.07 is: 8,036.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,805.49 : 13,531.02 = 5,824.07 : x
  2. Step 2: Convert to fraction form
    9,805.49/13,531.02 = 5,824.07/x
  3. Step 3: Cross multiply
    9,805.49x = 13,531.02 × 5,824.07
  4. Step 4: Simplify right side
    9,805.49x = 78,805,607.65
  5. Step 5: Solve for x
    x = 78,805,607.65/9,805.49
  6. Step 6: Final answer
    x = 8,036.89

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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.