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Finding the Fourth Proportional to 70,044.99, 96,661.62 and 39,830.31

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Solution

The fourth proportional to 70,044.99, 96,661.62 and 39,830.31 is: 54,965.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,044.99 : 96,661.62 = 39,830.31 : x
  2. Step 2: Convert to fraction form
    70,044.99/96,661.62 = 39,830.31/x
  3. Step 3: Cross multiply
    70,044.99x = 96,661.62 × 39,830.31
  4. Step 4: Simplify right side
    70,044.99x = 3,850,062,559.89
  5. Step 5: Solve for x
    x = 3,850,062,559.89/70,044.99
  6. Step 6: Final answer
    x = 54,965.57

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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.