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Finding the Fourth Proportional to 8,975.40, 13,456.06 and 4,357.16

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Solution

The fourth proportional to 8,975.40, 13,456.06 and 4,357.16 is: 6,532.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.40 : 13,456.06 = 4,357.16 : x
  2. Step 2: Convert to fraction form
    8,975.40/13,456.06 = 4,357.16/x
  3. Step 3: Cross multiply
    8,975.40x = 13,456.06 × 4,357.16
  4. Step 4: Simplify right side
    8,975.40x = 58,630,206.39
  5. Step 5: Solve for x
    x = 58,630,206.39/8,975.40
  6. Step 6: Final answer
    x = 6,532.32

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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.