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Finding the Fourth Proportional to 48,494.61, 66,912.52 and 28,347.59

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Solution

The fourth proportional to 48,494.61, 66,912.52 and 28,347.59 is: 39,113.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,494.61 : 66,912.52 = 28,347.59 : x
  2. Step 2: Convert to fraction form
    48,494.61/66,912.52 = 28,347.59/x
  3. Step 3: Cross multiply
    48,494.61x = 66,912.52 × 28,347.59
  4. Step 4: Simplify right side
    48,494.61x = 1,896,808,682.83
  5. Step 5: Solve for x
    x = 1,896,808,682.83/48,494.61
  6. Step 6: Final answer
    x = 39,113.81

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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.