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Finding the Fourth Proportional to 8,806.71, 12,153.60 and 4,827.74

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Solution

The fourth proportional to 8,806.71, 12,153.60 and 4,827.74 is: 6,662.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.71 : 12,153.60 = 4,827.74 : x
  2. Step 2: Convert to fraction form
    8,806.71/12,153.60 = 4,827.74/x
  3. Step 3: Cross multiply
    8,806.71x = 12,153.60 × 4,827.74
  4. Step 4: Simplify right side
    8,806.71x = 58,674,420.86
  5. Step 5: Solve for x
    x = 58,674,420.86/8,806.71
  6. Step 6: Final answer
    x = 6,662.47

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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.