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Finding the Fourth Proportional to 6,632.80, 9,970.80 and 4,698.40

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Solution

The fourth proportional to 6,632.80, 9,970.80 and 4,698.40 is: 7,062.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,632.80 : 9,970.80 = 4,698.40 : x
  2. Step 2: Convert to fraction form
    6,632.80/9,970.80 = 4,698.40/x
  3. Step 3: Cross multiply
    6,632.80x = 9,970.80 × 4,698.40
  4. Step 4: Simplify right side
    6,632.80x = 46,846,806.72
  5. Step 5: Solve for x
    x = 46,846,806.72/6,632.80
  6. Step 6: Final answer
    x = 7,062.90

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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.