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Finding the Fourth Proportional to 68,521.77, 94,550.88 and 38,303.31

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Solution

The fourth proportional to 68,521.77, 94,550.88 and 38,303.31 is: 52,853.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,521.77 : 94,550.88 = 38,303.31 : x
  2. Step 2: Convert to fraction form
    68,521.77/94,550.88 = 38,303.31/x
  3. Step 3: Cross multiply
    68,521.77x = 94,550.88 × 38,303.31
  4. Step 4: Simplify right side
    68,521.77x = 3,621,611,667.41
  5. Step 5: Solve for x
    x = 3,621,611,667.41/68,521.77
  6. Step 6: Final answer
    x = 52,853.45

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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.