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Finding the Fourth Proportional to 14,379.53, 19,830.62 and 9,065.12

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Solution

The fourth proportional to 14,379.53, 19,830.62 and 9,065.12 is: 12,501.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,379.53 : 19,830.62 = 9,065.12 : x
  2. Step 2: Convert to fraction form
    14,379.53/19,830.62 = 9,065.12/x
  3. Step 3: Cross multiply
    14,379.53x = 19,830.62 × 9,065.12
  4. Step 4: Simplify right side
    14,379.53x = 179,766,873.48
  5. Step 5: Solve for x
    x = 179,766,873.48/14,379.53
  6. Step 6: Final answer
    x = 12,501.59

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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.