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Finding the Fourth Proportional to 5,304.16, 7,955.60 and 1,408.88

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Solution

The fourth proportional to 5,304.16, 7,955.60 and 1,408.88 is: 2,113.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,304.16 : 7,955.60 = 1,408.88 : x
  2. Step 2: Convert to fraction form
    5,304.16/7,955.60 = 1,408.88/x
  3. Step 3: Cross multiply
    5,304.16x = 7,955.60 × 1,408.88
  4. Step 4: Simplify right side
    5,304.16x = 11,208,485.73
  5. Step 5: Solve for x
    x = 11,208,485.73/5,304.16
  6. Step 6: Final answer
    x = 2,113.15

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1.5x scale

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.