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Finding the Fourth Proportional to 60,700.32, 83,806.74 and 39,199.68

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Solution

The fourth proportional to 60,700.32, 83,806.74 and 39,199.68 is: 54,121.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,700.32 : 83,806.74 = 39,199.68 : x
  2. Step 2: Convert to fraction form
    60,700.32/83,806.74 = 39,199.68/x
  3. Step 3: Cross multiply
    60,700.32x = 83,806.74 × 39,199.68
  4. Step 4: Simplify right side
    60,700.32x = 3,285,197,389.84
  5. Step 5: Solve for x
    x = 3,285,197,389.84/60,700.32
  6. Step 6: Final answer
    x = 54,121.58

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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.