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Finding the Fourth Proportional to 70,996.30, 97,973.31 and 39,165.19

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Solution

The fourth proportional to 70,996.30, 97,973.31 and 39,165.19 is: 54,047.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,996.30 : 97,973.31 = 39,165.19 : x
  2. Step 2: Convert to fraction form
    70,996.30/97,973.31 = 39,165.19/x
  3. Step 3: Cross multiply
    70,996.30x = 97,973.31 × 39,165.19
  4. Step 4: Simplify right side
    70,996.30x = 3,837,143,203.02
  5. Step 5: Solve for x
    x = 3,837,143,203.02/70,996.30
  6. Step 6: Final answer
    x = 54,047.09

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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.