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Finding the Fourth Proportional to 6,315.92, 8,715.84 and 3,483.55

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Solution

The fourth proportional to 6,315.92, 8,715.84 and 3,483.55 is: 4,807.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.92 : 8,715.84 = 3,483.55 : x
  2. Step 2: Convert to fraction form
    6,315.92/8,715.84 = 3,483.55/x
  3. Step 3: Cross multiply
    6,315.92x = 8,715.84 × 3,483.55
  4. Step 4: Simplify right side
    6,315.92x = 30,362,055.71
  5. Step 5: Solve for x
    x = 30,362,055.71/6,315.92
  6. Step 6: Final answer
    x = 4,807.23

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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.