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Finding the Fourth Proportional to 27,868.50, 41,802.75 and 9,400.50

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Solution

The fourth proportional to 27,868.50, 41,802.75 and 9,400.50 is: 14,100.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,868.50 : 41,802.75 = 9,400.50 : x
  2. Step 2: Convert to fraction form
    27,868.50/41,802.75 = 9,400.50/x
  3. Step 3: Cross multiply
    27,868.50x = 41,802.75 × 9,400.50
  4. Step 4: Simplify right side
    27,868.50x = 392,966,751.38
  5. Step 5: Solve for x
    x = 392,966,751.38/27,868.50
  6. Step 6: Final answer
    x = 14,100.75

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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.