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Finding the Fourth Proportional to 70,975.94, 97,945.44 and 38,710.94

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Solution

The fourth proportional to 70,975.94, 97,945.44 and 38,710.94 is: 53,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,975.94 : 97,945.44 = 38,710.94 : x
  2. Step 2: Convert to fraction form
    70,975.94/97,945.44 = 38,710.94/x
  3. Step 3: Cross multiply
    70,975.94x = 97,945.44 × 38,710.94
  4. Step 4: Simplify right side
    70,975.94x = 3,791,560,051.11
  5. Step 5: Solve for x
    x = 3,791,560,051.11/70,975.94
  6. Step 6: Final answer
    x = 53,420.36

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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.