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Finding the Fourth Proportional to 6,921.63, 9,559.80 and 5,041.62

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Solution

The fourth proportional to 6,921.63, 9,559.80 and 5,041.62 is: 6,963.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.63 : 9,559.80 = 5,041.62 : x
  2. Step 2: Convert to fraction form
    6,921.63/9,559.80 = 5,041.62/x
  3. Step 3: Cross multiply
    6,921.63x = 9,559.80 × 5,041.62
  4. Step 4: Simplify right side
    6,921.63x = 48,196,878.88
  5. Step 5: Solve for x
    x = 48,196,878.88/6,921.63
  6. Step 6: Final answer
    x = 6,963.23

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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.