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Finding the Fourth Proportional to 69,703.12, 96,196.58 and 39,495.79

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Solution

The fourth proportional to 69,703.12, 96,196.58 and 39,495.79 is: 54,507.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,703.12 : 96,196.58 = 39,495.79 : x
  2. Step 2: Convert to fraction form
    69,703.12/96,196.58 = 39,495.79/x
  3. Step 3: Cross multiply
    69,703.12x = 96,196.58 × 39,495.79
  4. Step 4: Simplify right side
    69,703.12x = 3,799,359,922.40
  5. Step 5: Solve for x
    x = 3,799,359,922.40/69,703.12
  6. Step 6: Final answer
    x = 54,507.75

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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.