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Finding the Fourth Proportional to 34,993.76, 48,321.59 and 30,007.40

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Solution

The fourth proportional to 34,993.76, 48,321.59 and 30,007.40 is: 41,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,993.76 : 48,321.59 = 30,007.40 : x
  2. Step 2: Convert to fraction form
    34,993.76/48,321.59 = 30,007.40/x
  3. Step 3: Cross multiply
    34,993.76x = 48,321.59 × 30,007.40
  4. Step 4: Simplify right side
    34,993.76x = 1,450,004,888.12
  5. Step 5: Solve for x
    x = 1,450,004,888.12/34,993.76
  6. Step 6: Final answer
    x = 41,436.10

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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.