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Finding the Fourth Proportional to 46,898.20, 70,499.72 and 37,639.68

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Solution

The fourth proportional to 46,898.20, 70,499.72 and 37,639.68 is: 56,581.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,898.20 : 70,499.72 = 37,639.68 : x
  2. Step 2: Convert to fraction form
    46,898.20/70,499.72 = 37,639.68/x
  3. Step 3: Cross multiply
    46,898.20x = 70,499.72 × 37,639.68
  4. Step 4: Simplify right side
    46,898.20x = 2,653,586,900.89
  5. Step 5: Solve for x
    x = 2,653,586,900.89/46,898.20
  6. Step 6: Final answer
    x = 56,581.85

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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.