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Finding the Fourth Proportional to 70,029.65, 96,631.80 and 39,814.33

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Solution

The fourth proportional to 70,029.65, 96,631.80 and 39,814.33 is: 54,938.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,029.65 : 96,631.80 = 39,814.33 : x
  2. Step 2: Convert to fraction form
    70,029.65/96,631.80 = 39,814.33/x
  3. Step 3: Cross multiply
    70,029.65x = 96,631.80 × 39,814.33
  4. Step 4: Simplify right side
    70,029.65x = 3,847,330,373.69
  5. Step 5: Solve for x
    x = 3,847,330,373.69/70,029.65
  6. Step 6: Final answer
    x = 54,938.59

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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.