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Finding the Fourth Proportional to 49,969.40, 74,975.70 and 25,345.40

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Solution

The fourth proportional to 49,969.40, 74,975.70 and 25,345.40 is: 38,029.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,969.40 : 74,975.70 = 25,345.40 : x
  2. Step 2: Convert to fraction form
    49,969.40/74,975.70 = 25,345.40/x
  3. Step 3: Cross multiply
    49,969.40x = 74,975.70 × 25,345.40
  4. Step 4: Simplify right side
    49,969.40x = 1,900,289,106.78
  5. Step 5: Solve for x
    x = 1,900,289,106.78/49,969.40
  6. Step 6: Final answer
    x = 38,029.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.