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Finding the Fourth Proportional to 31,246.87, 46,870.08 and 12,526.63

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Solution

The fourth proportional to 31,246.87, 46,870.08 and 12,526.63 is: 18,789.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,246.87 : 46,870.08 = 12,526.63 : x
  2. Step 2: Convert to fraction form
    31,246.87/46,870.08 = 12,526.63/x
  3. Step 3: Cross multiply
    31,246.87x = 46,870.08 × 12,526.63
  4. Step 4: Simplify right side
    31,246.87x = 587,124,150.23
  5. Step 5: Solve for x
    x = 587,124,150.23/31,246.87
  6. Step 6: Final answer
    x = 18,789.85

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1.5x scale

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.