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Finding the Fourth Proportional to 6,954.80, 10,432.20 and 4,751.60

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Solution

The fourth proportional to 6,954.80, 10,432.20 and 4,751.60 is: 7,127.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,954.80 : 10,432.20 = 4,751.60 : x
  2. Step 2: Convert to fraction form
    6,954.80/10,432.20 = 4,751.60/x
  3. Step 3: Cross multiply
    6,954.80x = 10,432.20 × 4,751.60
  4. Step 4: Simplify right side
    6,954.80x = 49,569,641.52
  5. Step 5: Solve for x
    x = 49,569,641.52/6,954.80
  6. Step 6: Final answer
    x = 7,127.40

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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.