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Finding the Fourth Proportional to 48,230.40, 72,334.80 and 31,706.40

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Solution

The fourth proportional to 48,230.40, 72,334.80 and 31,706.40 is: 47,552.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,230.40 : 72,334.80 = 31,706.40 : x
  2. Step 2: Convert to fraction form
    48,230.40/72,334.80 = 31,706.40/x
  3. Step 3: Cross multiply
    48,230.40x = 72,334.80 × 31,706.40
  4. Step 4: Simplify right side
    48,230.40x = 2,293,476,102.72
  5. Step 5: Solve for x
    x = 2,293,476,102.72/48,230.40
  6. Step 6: Final answer
    x = 47,552.50

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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.