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Finding the Fourth Proportional to 61,491.58, 84,866.42 and 34,639.26

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Solution

The fourth proportional to 61,491.58, 84,866.42 and 34,639.26 is: 47,806.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,491.58 : 84,866.42 = 34,639.26 : x
  2. Step 2: Convert to fraction form
    61,491.58/84,866.42 = 34,639.26/x
  3. Step 3: Cross multiply
    61,491.58x = 84,866.42 × 34,639.26
  4. Step 4: Simplify right side
    61,491.58x = 2,939,709,987.65
  5. Step 5: Solve for x
    x = 2,939,709,987.65/61,491.58
  6. Step 6: Final answer
    x = 47,806.71

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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.