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Finding the Fourth Proportional to 35,429.49, 53,140.98 and 10,805.49

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Solution

The fourth proportional to 35,429.49, 53,140.98 and 10,805.49 is: 16,207.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,429.49 : 53,140.98 = 10,805.49 : x
  2. Step 2: Convert to fraction form
    35,429.49/53,140.98 = 10,805.49/x
  3. Step 3: Cross multiply
    35,429.49x = 53,140.98 × 10,805.49
  4. Step 4: Simplify right side
    35,429.49x = 574,214,327.98
  5. Step 5: Solve for x
    x = 574,214,327.98/35,429.49
  6. Step 6: Final answer
    x = 16,207.24

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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.