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Finding the Fourth Proportional to 55,252.50, 82,878.75 and 18,316.50

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Solution

The fourth proportional to 55,252.50, 82,878.75 and 18,316.50 is: 27,474.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,252.50 : 82,878.75 = 18,316.50 : x
  2. Step 2: Convert to fraction form
    55,252.50/82,878.75 = 18,316.50/x
  3. Step 3: Cross multiply
    55,252.50x = 82,878.75 × 18,316.50
  4. Step 4: Simplify right side
    55,252.50x = 1,518,048,624.38
  5. Step 5: Solve for x
    x = 1,518,048,624.38/55,252.50
  6. Step 6: Final answer
    x = 27,474.75

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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.