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Finding the Fourth Proportional to 69,654.76, 96,123.56 and 39,846.76

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Solution

The fourth proportional to 69,654.76, 96,123.56 and 39,846.76 is: 54,988.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,654.76 : 96,123.56 = 39,846.76 : x
  2. Step 2: Convert to fraction form
    69,654.76/96,123.56 = 39,846.76/x
  3. Step 3: Cross multiply
    69,654.76x = 96,123.56 × 39,846.76
  4. Step 4: Simplify right side
    69,654.76x = 3,830,212,425.67
  5. Step 5: Solve for x
    x = 3,830,212,425.67/69,654.76
  6. Step 6: Final answer
    x = 54,988.52

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Half scale
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Double scale
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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.