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Finding the Fourth Proportional to 9,393.10, 14,087.40 and 5,435.80

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Solution

The fourth proportional to 9,393.10, 14,087.40 and 5,435.80 is: 8,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,393.10 : 14,087.40 = 5,435.80 : x
  2. Step 2: Convert to fraction form
    9,393.10/14,087.40 = 5,435.80/x
  3. Step 3: Cross multiply
    9,393.10x = 14,087.40 × 5,435.80
  4. Step 4: Simplify right side
    9,393.10x = 76,576,288.92
  5. Step 5: Solve for x
    x = 76,576,288.92/9,393.10
  6. Step 6: Final answer
    x = 8,152.40

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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.