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Finding the Fourth Proportional to 70,953.87, 97,914.51 and 39,122.22

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Solution

The fourth proportional to 70,953.87, 97,914.51 and 39,122.22 is: 53,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,953.87 : 97,914.51 = 39,122.22 : x
  2. Step 2: Convert to fraction form
    70,953.87/97,914.51 = 39,122.22/x
  3. Step 3: Cross multiply
    70,953.87x = 97,914.51 × 39,122.22
  4. Step 4: Simplify right side
    70,953.87x = 3,830,633,001.41
  5. Step 5: Solve for x
    x = 3,830,633,001.41/70,953.87
  6. Step 6: Final answer
    x = 53,987.65

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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.