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Finding the Fourth Proportional to 61,491.83, 84,866.74 and 34,639.52

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Solution

The fourth proportional to 61,491.83, 84,866.74 and 34,639.52 is: 47,807.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,491.83 : 84,866.74 = 34,639.52 : x
  2. Step 2: Convert to fraction form
    61,491.83/84,866.74 = 34,639.52/x
  3. Step 3: Cross multiply
    61,491.83x = 84,866.74 × 34,639.52
  4. Step 4: Simplify right side
    61,491.83x = 2,939,742,626.63
  5. Step 5: Solve for x
    x = 2,939,742,626.63/61,491.83
  6. Step 6: Final answer
    x = 47,807.05

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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.