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Finding the Fourth Proportional to 14,239.36, 19,648.88 and 9,766.88

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Solution

The fourth proportional to 14,239.36, 19,648.88 and 9,766.88 is: 13,477.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.36 : 19,648.88 = 9,766.88 : x
  2. Step 2: Convert to fraction form
    14,239.36/19,648.88 = 9,766.88/x
  3. Step 3: Cross multiply
    14,239.36x = 19,648.88 × 9,766.88
  4. Step 4: Simplify right side
    14,239.36x = 191,908,253.09
  5. Step 5: Solve for x
    x = 191,908,253.09/14,239.36
  6. Step 6: Final answer
    x = 13,477.31

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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.