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Finding the Fourth Proportional to 69,810.33, 96,338.99 and 37,979.16

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Solution

The fourth proportional to 69,810.33, 96,338.99 and 37,979.16 is: 52,411.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,810.33 : 96,338.99 = 37,979.16 : x
  2. Step 2: Convert to fraction form
    69,810.33/96,338.99 = 37,979.16/x
  3. Step 3: Cross multiply
    69,810.33x = 96,338.99 × 37,979.16
  4. Step 4: Simplify right side
    69,810.33x = 3,658,873,915.45
  5. Step 5: Solve for x
    x = 3,658,873,915.45/69,810.33
  6. Step 6: Final answer
    x = 52,411.64

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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.