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Finding the Fourth Proportional to 8,554.95, 12,831.02 and 3,006.99

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Solution

The fourth proportional to 8,554.95, 12,831.02 and 3,006.99 is: 4,509.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,554.95 : 12,831.02 = 3,006.99 : x
  2. Step 2: Convert to fraction form
    8,554.95/12,831.02 = 3,006.99/x
  3. Step 3: Cross multiply
    8,554.95x = 12,831.02 × 3,006.99
  4. Step 4: Simplify right side
    8,554.95x = 38,582,669.64
  5. Step 5: Solve for x
    x = 38,582,669.64/8,554.95
  6. Step 6: Final answer
    x = 4,509.98

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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.