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Finding the Fourth Proportional to 9,840.03, 13,579.64 and 5,363.91

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Solution

The fourth proportional to 9,840.03, 13,579.64 and 5,363.91 is: 7,402.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,840.03 : 13,579.64 = 5,363.91 : x
  2. Step 2: Convert to fraction form
    9,840.03/13,579.64 = 5,363.91/x
  3. Step 3: Cross multiply
    9,840.03x = 13,579.64 × 5,363.91
  4. Step 4: Simplify right side
    9,840.03x = 72,839,939.97
  5. Step 5: Solve for x
    x = 72,839,939.97/9,840.03
  6. Step 6: Final answer
    x = 7,402.41

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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.