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Finding the Fourth Proportional to 7,022.65, 9,693.12 and 4,038.82

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Solution

The fourth proportional to 7,022.65, 9,693.12 and 4,038.82 is: 5,574.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,022.65 : 9,693.12 = 4,038.82 : x
  2. Step 2: Convert to fraction form
    7,022.65/9,693.12 = 4,038.82/x
  3. Step 3: Cross multiply
    7,022.65x = 9,693.12 × 4,038.82
  4. Step 4: Simplify right side
    7,022.65x = 39,148,766.92
  5. Step 5: Solve for x
    x = 39,148,766.92/7,022.65
  6. Step 6: Final answer
    x = 5,574.64

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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.