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Finding the Fourth Proportional to 3,364.48, 5,047.02 and 899.32

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Solution

The fourth proportional to 3,364.48, 5,047.02 and 899.32 is: 1,349.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,364.48 : 5,047.02 = 899.32 : x
  2. Step 2: Convert to fraction form
    3,364.48/5,047.02 = 899.32/x
  3. Step 3: Cross multiply
    3,364.48x = 5,047.02 × 899.32
  4. Step 4: Simplify right side
    3,364.48x = 4,538,886.03
  5. Step 5: Solve for x
    x = 4,538,886.03/3,364.48
  6. Step 6: Final answer
    x = 1,349.06

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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.