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Finding the Fourth Proportional to 14,205.56, 19,616.06 and 8,909.51

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Solution

The fourth proportional to 14,205.56, 19,616.06 and 8,909.51 is: 12,302.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,205.56 : 19,616.06 = 8,909.51 : x
  2. Step 2: Convert to fraction form
    14,205.56/19,616.06 = 8,909.51/x
  3. Step 3: Cross multiply
    14,205.56x = 19,616.06 × 8,909.51
  4. Step 4: Simplify right side
    14,205.56x = 174,769,384.65
  5. Step 5: Solve for x
    x = 174,769,384.65/14,205.56
  6. Step 6: Final answer
    x = 12,302.89

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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.