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Finding the Fourth Proportional to 70,007, 96,606.14 and 39,788.32

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Solution

The fourth proportional to 70,007, 96,606.14 and 39,788.32 is: 54,905.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,007 : 96,606.14 = 39,788.32 : x
  2. Step 2: Convert to fraction form
    70,007/96,606.14 = 39,788.32/x
  3. Step 3: Cross multiply
    70,007x = 96,606.14 × 39,788.32
  4. Step 4: Simplify right side
    70,007x = 3,843,796,012.28
  5. Step 5: Solve for x
    x = 3,843,796,012.28/70,007
  6. Step 6: Final answer
    x = 54,905.88

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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.