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Finding the Fourth Proportional to 28,876.34, 39,849.04 and 16,937.42

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Solution

The fourth proportional to 28,876.34, 39,849.04 and 16,937.42 is: 23,373.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,876.34 : 39,849.04 = 16,937.42 : x
  2. Step 2: Convert to fraction form
    28,876.34/39,849.04 = 16,937.42/x
  3. Step 3: Cross multiply
    28,876.34x = 39,849.04 × 16,937.42
  4. Step 4: Simplify right side
    28,876.34x = 674,939,927.08
  5. Step 5: Solve for x
    x = 674,939,927.08/28,876.34
  6. Step 6: Final answer
    x = 23,373.46

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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.