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Finding the Fourth Proportional to 28,783.96, 43,175.78 and 9,063.96

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Solution

The fourth proportional to 28,783.96, 43,175.78 and 9,063.96 is: 13,595.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,783.96 : 43,175.78 = 9,063.96 : x
  2. Step 2: Convert to fraction form
    28,783.96/43,175.78 = 9,063.96/x
  3. Step 3: Cross multiply
    28,783.96x = 43,175.78 × 9,063.96
  4. Step 4: Simplify right side
    28,783.96x = 391,343,542.89
  5. Step 5: Solve for x
    x = 391,343,542.89/28,783.96
  6. Step 6: Final answer
    x = 13,595.89

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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.