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Finding the Fourth Proportional to 7,684.94, 10,606.22 and 4,328.40

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Solution

The fourth proportional to 7,684.94, 10,606.22 and 4,328.40 is: 5,973.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,684.94 : 10,606.22 = 4,328.40 : x
  2. Step 2: Convert to fraction form
    7,684.94/10,606.22 = 4,328.40/x
  3. Step 3: Cross multiply
    7,684.94x = 10,606.22 × 4,328.40
  4. Step 4: Simplify right side
    7,684.94x = 45,907,941.01
  5. Step 5: Solve for x
    x = 45,907,941.01/7,684.94
  6. Step 6: Final answer
    x = 5,973.76

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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.