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Finding the Fourth Proportional to 19,393.84, 29,089.13 and 7,703.92

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Solution

The fourth proportional to 19,393.84, 29,089.13 and 7,703.92 is: 11,555.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,393.84 : 29,089.13 = 7,703.92 : x
  2. Step 2: Convert to fraction form
    19,393.84/29,089.13 = 7,703.92/x
  3. Step 3: Cross multiply
    19,393.84x = 29,089.13 × 7,703.92
  4. Step 4: Simplify right side
    19,393.84x = 224,100,330.39
  5. Step 5: Solve for x
    x = 224,100,330.39/19,393.84
  6. Step 6: Final answer
    x = 11,555.23

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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.