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Finding the Fourth Proportional to 7,907.75, 10,911.75 and 4,370.48

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Solution

The fourth proportional to 7,907.75, 10,911.75 and 4,370.48 is: 6,030.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.75 : 10,911.75 = 4,370.48 : x
  2. Step 2: Convert to fraction form
    7,907.75/10,911.75 = 4,370.48/x
  3. Step 3: Cross multiply
    7,907.75x = 10,911.75 × 4,370.48
  4. Step 4: Simplify right side
    7,907.75x = 47,689,585.14
  5. Step 5: Solve for x
    x = 47,689,585.14/7,907.75
  6. Step 6: Final answer
    x = 6,030.74

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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.