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Finding the Fourth Proportional to 8,358.32, 12,523.80 and 5,072.42

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Solution

The fourth proportional to 8,358.32, 12,523.80 and 5,072.42 is: 7,600.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.32 : 12,523.80 = 5,072.42 : x
  2. Step 2: Convert to fraction form
    8,358.32/12,523.80 = 5,072.42/x
  3. Step 3: Cross multiply
    8,358.32x = 12,523.80 × 5,072.42
  4. Step 4: Simplify right side
    8,358.32x = 63,525,973.60
  5. Step 5: Solve for x
    x = 63,525,973.60/8,358.32
  6. Step 6: Final answer
    x = 7,600.33

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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.