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Finding the Fourth Proportional to 19,708.88, 29,555.16 and 8,014.16

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Solution

The fourth proportional to 19,708.88, 29,555.16 and 8,014.16 is: 12,017.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,708.88 : 29,555.16 = 8,014.16 : x
  2. Step 2: Convert to fraction form
    19,708.88/29,555.16 = 8,014.16/x
  3. Step 3: Cross multiply
    19,708.88x = 29,555.16 × 8,014.16
  4. Step 4: Simplify right side
    19,708.88x = 236,859,781.07
  5. Step 5: Solve for x
    x = 236,859,781.07/19,708.88
  6. Step 6: Final answer
    x = 12,017.92

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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.