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Finding the Fourth Proportional to 29,556.96, 44,343.72 and 12,918.48

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Solution

The fourth proportional to 29,556.96, 44,343.72 and 12,918.48 is: 19,381.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,556.96 : 44,343.72 = 12,918.48 : x
  2. Step 2: Convert to fraction form
    29,556.96/44,343.72 = 12,918.48/x
  3. Step 3: Cross multiply
    29,556.96x = 44,343.72 × 12,918.48
  4. Step 4: Simplify right side
    29,556.96x = 572,853,459.95
  5. Step 5: Solve for x
    x = 572,853,459.95/29,556.96
  6. Step 6: Final answer
    x = 19,381.34

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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.