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Finding the Fourth Proportional to 73,340.28, 101,210.76 and 39,806.28

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Solution

The fourth proportional to 73,340.28, 101,210.76 and 39,806.28 is: 54,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,340.28 : 101,210.76 = 39,806.28 : x
  2. Step 2: Convert to fraction form
    73,340.28/101,210.76 = 39,806.28/x
  3. Step 3: Cross multiply
    73,340.28x = 101,210.76 × 39,806.28
  4. Step 4: Simplify right side
    73,340.28x = 4,028,823,851.57
  5. Step 5: Solve for x
    x = 4,028,823,851.57/73,340.28
  6. Step 6: Final answer
    x = 54,933.30

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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.