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Finding the Fourth Proportional to 4,470.76, 6,706.14 and 1,393

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Solution

The fourth proportional to 4,470.76, 6,706.14 and 1,393 is: 2,089.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,470.76 : 6,706.14 = 1,393 : x
  2. Step 2: Convert to fraction form
    4,470.76/6,706.14 = 1,393/x
  3. Step 3: Cross multiply
    4,470.76x = 6,706.14 × 1,393
  4. Step 4: Simplify right side
    4,470.76x = 9,341,653.02
  5. Step 5: Solve for x
    x = 9,341,653.02/4,470.76
  6. Step 6: Final answer
    x = 2,089.50

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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.