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Finding the Fourth Proportional to 35,491.80, 53,228.10 and 10,531.80

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Solution

The fourth proportional to 35,491.80, 53,228.10 and 10,531.80 is: 15,794.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,491.80 : 53,228.10 = 10,531.80 : x
  2. Step 2: Convert to fraction form
    35,491.80/53,228.10 = 10,531.80/x
  3. Step 3: Cross multiply
    35,491.80x = 53,228.10 × 10,531.80
  4. Step 4: Simplify right side
    35,491.80x = 560,587,703.58
  5. Step 5: Solve for x
    x = 560,587,703.58/35,491.80
  6. Step 6: Final answer
    x = 15,794.85

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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.