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Finding the Fourth Proportional to 28,703.84, 39,594.78 and 17,929.98

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Solution

The fourth proportional to 28,703.84, 39,594.78 and 17,929.98 is: 24,733.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,703.84 : 39,594.78 = 17,929.98 : x
  2. Step 2: Convert to fraction form
    28,703.84/39,594.78 = 17,929.98/x
  3. Step 3: Cross multiply
    28,703.84x = 39,594.78 × 17,929.98
  4. Step 4: Simplify right side
    28,703.84x = 709,933,613.50
  5. Step 5: Solve for x
    x = 709,933,613.50/28,703.84
  6. Step 6: Final answer
    x = 24,733.06

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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.