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Finding the Fourth Proportional to 70,975.92, 97,946.03 and 39,144.14

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Solution

The fourth proportional to 70,975.92, 97,946.03 and 39,144.14 is: 54,018.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,975.92 : 97,946.03 = 39,144.14 : x
  2. Step 2: Convert to fraction form
    70,975.92/97,946.03 = 39,144.14/x
  3. Step 3: Cross multiply
    70,975.92x = 97,946.03 × 39,144.14
  4. Step 4: Simplify right side
    70,975.92x = 3,834,012,425.31
  5. Step 5: Solve for x
    x = 3,834,012,425.31/70,975.92
  6. Step 6: Final answer
    x = 54,018.50

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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.