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Finding the Fourth Proportional to 53,245.74, 73,482.75 and 30,889.74

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Solution

The fourth proportional to 53,245.74, 73,482.75 and 30,889.74 is: 42,629.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,245.74 : 73,482.75 = 30,889.74 : x
  2. Step 2: Convert to fraction form
    53,245.74/73,482.75 = 30,889.74/x
  3. Step 3: Cross multiply
    53,245.74x = 73,482.75 × 30,889.74
  4. Step 4: Simplify right side
    53,245.74x = 2,269,863,041.99
  5. Step 5: Solve for x
    x = 2,269,863,041.99/53,245.74
  6. Step 6: Final answer
    x = 42,629.95

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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.