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Finding the Fourth Proportional to 70,952.32, 97,914.86 and 39,122.36

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Solution

The fourth proportional to 70,952.32, 97,914.86 and 39,122.36 is: 53,989.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,952.32 : 97,914.86 = 39,122.36 : x
  2. Step 2: Convert to fraction form
    70,952.32/97,914.86 = 39,122.36/x
  3. Step 3: Cross multiply
    70,952.32x = 97,914.86 × 39,122.36
  4. Step 4: Simplify right side
    70,952.32x = 3,830,660,402.27
  5. Step 5: Solve for x
    x = 3,830,660,402.27/70,952.32
  6. Step 6: Final answer
    x = 53,989.22

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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.