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Finding the Fourth Proportional to 14,772.60, 20,383.68 and 8,804.16

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Solution

The fourth proportional to 14,772.60, 20,383.68 and 8,804.16 is: 12,148.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772.60 : 20,383.68 = 8,804.16 : x
  2. Step 2: Convert to fraction form
    14,772.60/20,383.68 = 8,804.16/x
  3. Step 3: Cross multiply
    14,772.60x = 20,383.68 × 8,804.16
  4. Step 4: Simplify right side
    14,772.60x = 179,461,180.11
  5. Step 5: Solve for x
    x = 179,461,180.11/14,772.60
  6. Step 6: Final answer
    x = 12,148.25

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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.