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Finding the Fourth Proportional to 28,653.30, 39,631.41 and 25,341.30

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Solution

The fourth proportional to 28,653.30, 39,631.41 and 25,341.30 is: 35,050.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,653.30 : 39,631.41 = 25,341.30 : x
  2. Step 2: Convert to fraction form
    28,653.30/39,631.41 = 25,341.30/x
  3. Step 3: Cross multiply
    28,653.30x = 39,631.41 × 25,341.30
  4. Step 4: Simplify right side
    28,653.30x = 1,004,311,450.23
  5. Step 5: Solve for x
    x = 1,004,311,450.23/28,653.30
  6. Step 6: Final answer
    x = 35,050.46

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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.