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Finding the Fourth Proportional to 45,390.94, 62,639.49 and 25,518.94

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Solution

The fourth proportional to 45,390.94, 62,639.49 and 25,518.94 is: 35,216.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,390.94 : 62,639.49 = 25,518.94 : x
  2. Step 2: Convert to fraction form
    45,390.94/62,639.49 = 25,518.94/x
  3. Step 3: Cross multiply
    45,390.94x = 62,639.49 × 25,518.94
  4. Step 4: Simplify right side
    45,390.94x = 1,598,493,326.04
  5. Step 5: Solve for x
    x = 1,598,493,326.04/45,390.94
  6. Step 6: Final answer
    x = 35,216.13

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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.