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Finding the Fourth Proportional to 7,152.75, 10,729.14 and 3,048.75

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Solution

The fourth proportional to 7,152.75, 10,729.14 and 3,048.75 is: 4,573.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152.75 : 10,729.14 = 3,048.75 : x
  2. Step 2: Convert to fraction form
    7,152.75/10,729.14 = 3,048.75/x
  3. Step 3: Cross multiply
    7,152.75x = 10,729.14 × 3,048.75
  4. Step 4: Simplify right side
    7,152.75x = 32,710,465.58
  5. Step 5: Solve for x
    x = 32,710,465.58/7,152.75
  6. Step 6: Final answer
    x = 4,573.13

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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.