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Finding the Fourth Proportional to 69,877.42, 96,425.96 and 39,663.34

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Solution

The fourth proportional to 69,877.42, 96,425.96 and 39,663.34 is: 54,732.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,877.42 : 96,425.96 = 39,663.34 : x
  2. Step 2: Convert to fraction form
    69,877.42/96,425.96 = 39,663.34/x
  3. Step 3: Cross multiply
    69,877.42x = 96,425.96 × 39,663.34
  4. Step 4: Simplify right side
    69,877.42x = 3,824,575,636.31
  5. Step 5: Solve for x
    x = 3,824,575,636.31/69,877.42
  6. Step 6: Final answer
    x = 54,732.64

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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.