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Finding the Fourth Proportional to 19,707.71, 29,535.90 and 8,007.25

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Solution

The fourth proportional to 19,707.71, 29,535.90 and 8,007.25 is: 12,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,707.71 : 29,535.90 = 8,007.25 : x
  2. Step 2: Convert to fraction form
    19,707.71/29,535.90 = 8,007.25/x
  3. Step 3: Cross multiply
    19,707.71x = 29,535.90 × 8,007.25
  4. Step 4: Simplify right side
    19,707.71x = 236,501,295.24
  5. Step 5: Solve for x
    x = 236,501,295.24/19,707.71
  6. Step 6: Final answer
    x = 12,000.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.