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Finding the Fourth Proportional to 7,698.64, 10,623.72 and 4,341.46

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Solution

The fourth proportional to 7,698.64, 10,623.72 and 4,341.46 is: 5,990.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,698.64 : 10,623.72 = 4,341.46 : x
  2. Step 2: Convert to fraction form
    7,698.64/10,623.72 = 4,341.46/x
  3. Step 3: Cross multiply
    7,698.64x = 10,623.72 × 4,341.46
  4. Step 4: Simplify right side
    7,698.64x = 46,122,455.43
  5. Step 5: Solve for x
    x = 46,122,455.43/7,698.64
  6. Step 6: Final answer
    x = 5,990.99

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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.