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Finding the Fourth Proportional to 68,852.40, 95,008.50 and 38,631.42

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Solution

The fourth proportional to 68,852.40, 95,008.50 and 38,631.42 is: 53,306.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,852.40 : 95,008.50 = 38,631.42 : x
  2. Step 2: Convert to fraction form
    68,852.40/95,008.50 = 38,631.42/x
  3. Step 3: Cross multiply
    68,852.40x = 95,008.50 × 38,631.42
  4. Step 4: Simplify right side
    68,852.40x = 3,670,313,267.07
  5. Step 5: Solve for x
    x = 3,670,313,267.07/68,852.40
  6. Step 6: Final answer
    x = 53,306.98

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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.