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Finding the Fourth Proportional to 8,927.69, 12,320.94 and 4,950.09

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Solution

The fourth proportional to 8,927.69, 12,320.94 and 4,950.09 is: 6,831.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,927.69 : 12,320.94 = 4,950.09 : x
  2. Step 2: Convert to fraction form
    8,927.69/12,320.94 = 4,950.09/x
  3. Step 3: Cross multiply
    8,927.69x = 12,320.94 × 4,950.09
  4. Step 4: Simplify right side
    8,927.69x = 60,989,675.53
  5. Step 5: Solve for x
    x = 60,989,675.53/8,927.69
  6. Step 6: Final answer
    x = 6,831.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.