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Finding the Fourth Proportional to 8,392.70, 12,583.50 and 4,695.32

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Solution

The fourth proportional to 8,392.70, 12,583.50 and 4,695.32 is: 7,039.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.70 : 12,583.50 = 4,695.32 : x
  2. Step 2: Convert to fraction form
    8,392.70/12,583.50 = 4,695.32/x
  3. Step 3: Cross multiply
    8,392.70x = 12,583.50 × 4,695.32
  4. Step 4: Simplify right side
    8,392.70x = 59,083,559.22
  5. Step 5: Solve for x
    x = 59,083,559.22/8,392.70
  6. Step 6: Final answer
    x = 7,039.88

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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.