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Finding the Fourth Proportional to 14,636.73, 21,955.14 and 4,776.78

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Solution

The fourth proportional to 14,636.73, 21,955.14 and 4,776.78 is: 7,165.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,636.73 : 21,955.14 = 4,776.78 : x
  2. Step 2: Convert to fraction form
    14,636.73/21,955.14 = 4,776.78/x
  3. Step 3: Cross multiply
    14,636.73x = 21,955.14 × 4,776.78
  4. Step 4: Simplify right side
    14,636.73x = 104,874,873.65
  5. Step 5: Solve for x
    x = 104,874,873.65/14,636.73
  6. Step 6: Final answer
    x = 7,165.18

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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.