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Finding the Fourth Proportional to 6,648.56, 9,973.32 and 1,718.24

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Solution

The fourth proportional to 6,648.56, 9,973.32 and 1,718.24 is: 2,577.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648.56 : 9,973.32 = 1,718.24 : x
  2. Step 2: Convert to fraction form
    6,648.56/9,973.32 = 1,718.24/x
  3. Step 3: Cross multiply
    6,648.56x = 9,973.32 × 1,718.24
  4. Step 4: Simplify right side
    6,648.56x = 17,136,557.36
  5. Step 5: Solve for x
    x = 17,136,557.36/6,648.56
  6. Step 6: Final answer
    x = 2,577.48

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.