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Finding the Fourth Proportional to 35,326.40, 48,747.59 and 20,215.59

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Solution

The fourth proportional to 35,326.40, 48,747.59 and 20,215.59 is: 27,895.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,326.40 : 48,747.59 = 20,215.59 : x
  2. Step 2: Convert to fraction form
    35,326.40/48,747.59 = 20,215.59/x
  3. Step 3: Cross multiply
    35,326.40x = 48,747.59 × 20,215.59
  4. Step 4: Simplify right side
    35,326.40x = 985,461,359.06
  5. Step 5: Solve for x
    x = 985,461,359.06/35,326.40
  6. Step 6: Final answer
    x = 27,895.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.