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Finding the Fourth Proportional to 35,512.40, 53,347.80 and 29,680.40

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Solution

The fourth proportional to 35,512.40, 53,347.80 and 29,680.40 is: 44,586.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,512.40 : 53,347.80 = 29,680.40 : x
  2. Step 2: Convert to fraction form
    35,512.40/53,347.80 = 29,680.40/x
  3. Step 3: Cross multiply
    35,512.40x = 53,347.80 × 29,680.40
  4. Step 4: Simplify right side
    35,512.40x = 1,583,384,043.12
  5. Step 5: Solve for x
    x = 1,583,384,043.12/35,512.40
  6. Step 6: Final answer
    x = 44,586.79

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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.