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Finding the Fourth Proportional to 28,993.84, 40,011.50 and 17,663.33

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Solution

The fourth proportional to 28,993.84, 40,011.50 and 17,663.33 is: 24,375.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,993.84 : 40,011.50 = 17,663.33 : x
  2. Step 2: Convert to fraction form
    28,993.84/40,011.50 = 17,663.33/x
  3. Step 3: Cross multiply
    28,993.84x = 40,011.50 × 17,663.33
  4. Step 4: Simplify right side
    28,993.84x = 706,736,472.48
  5. Step 5: Solve for x
    x = 706,736,472.48/28,993.84
  6. Step 6: Final answer
    x = 24,375.40

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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.