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Finding the Fourth Proportional to 14,063.99, 19,390.66 and 9,019.31

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Solution

The fourth proportional to 14,063.99, 19,390.66 and 9,019.31 is: 12,435.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,063.99 : 19,390.66 = 9,019.31 : x
  2. Step 2: Convert to fraction form
    14,063.99/19,390.66 = 9,019.31/x
  3. Step 3: Cross multiply
    14,063.99x = 19,390.66 × 9,019.31
  4. Step 4: Simplify right side
    14,063.99x = 174,890,254.14
  5. Step 5: Solve for x
    x = 174,890,254.14/14,063.99
  6. Step 6: Final answer
    x = 12,435.33

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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.