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Finding the Fourth Proportional to 28,894.96, 43,347.82 and 9,168.20

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Solution

The fourth proportional to 28,894.96, 43,347.82 and 9,168.20 is: 13,754.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,894.96 : 43,347.82 = 9,168.20 : x
  2. Step 2: Convert to fraction form
    28,894.96/43,347.82 = 9,168.20/x
  3. Step 3: Cross multiply
    28,894.96x = 43,347.82 × 9,168.20
  4. Step 4: Simplify right side
    28,894.96x = 397,421,483.32
  5. Step 5: Solve for x
    x = 397,421,483.32/28,894.96
  6. Step 6: Final answer
    x = 13,754.01

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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.