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Finding the Fourth Proportional to 14,653.65, 21,980.17 and 3,560.39

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Solution

The fourth proportional to 14,653.65, 21,980.17 and 3,560.39 is: 5,340.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,653.65 : 21,980.17 = 3,560.39 : x
  2. Step 2: Convert to fraction form
    14,653.65/21,980.17 = 3,560.39/x
  3. Step 3: Cross multiply
    14,653.65x = 21,980.17 × 3,560.39
  4. Step 4: Simplify right side
    14,653.65x = 78,258,058.05
  5. Step 5: Solve for x
    x = 78,258,058.05/14,653.65
  6. Step 6: Final answer
    x = 5,340.52

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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.