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Finding the Fourth Proportional to 48,473.40, 72,685.80 and 22,148.40

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Solution

The fourth proportional to 48,473.40, 72,685.80 and 22,148.40 is: 33,211.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,473.40 : 72,685.80 = 22,148.40 : x
  2. Step 2: Convert to fraction form
    48,473.40/72,685.80 = 22,148.40/x
  3. Step 3: Cross multiply
    48,473.40x = 72,685.80 × 22,148.40
  4. Step 4: Simplify right side
    48,473.40x = 1,609,874,172.72
  5. Step 5: Solve for x
    x = 1,609,874,172.72/48,473.40
  6. Step 6: Final answer
    x = 33,211.50

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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.