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Finding the Fourth Proportional to 8,625.48, 12,927.24 and 4,929.72

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Solution

The fourth proportional to 8,625.48, 12,927.24 and 4,929.72 is: 7,388.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,625.48 : 12,927.24 = 4,929.72 : x
  2. Step 2: Convert to fraction form
    8,625.48/12,927.24 = 4,929.72/x
  3. Step 3: Cross multiply
    8,625.48x = 12,927.24 × 4,929.72
  4. Step 4: Simplify right side
    8,625.48x = 63,727,673.57
  5. Step 5: Solve for x
    x = 63,727,673.57/8,625.48
  6. Step 6: Final answer
    x = 7,388.30

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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.