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Finding the Fourth Proportional to 14,051.81, 19,384.88 and 8,383.32

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Solution

The fourth proportional to 14,051.81, 19,384.88 and 8,383.32 is: 11,565.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,051.81 : 19,384.88 = 8,383.32 : x
  2. Step 2: Convert to fraction form
    14,051.81/19,384.88 = 8,383.32/x
  3. Step 3: Cross multiply
    14,051.81x = 19,384.88 × 8,383.32
  4. Step 4: Simplify right side
    14,051.81x = 162,509,610.29
  5. Step 5: Solve for x
    x = 162,509,610.29/14,051.81
  6. Step 6: Final answer
    x = 11,565.03

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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.