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Finding the Fourth Proportional to 9,982.60, 13,775.98 and 5,506.64

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Solution

The fourth proportional to 9,982.60, 13,775.98 and 5,506.64 is: 7,599.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,982.60 : 13,775.98 = 5,506.64 : x
  2. Step 2: Convert to fraction form
    9,982.60/13,775.98 = 5,506.64/x
  3. Step 3: Cross multiply
    9,982.60x = 13,775.98 × 5,506.64
  4. Step 4: Simplify right side
    9,982.60x = 75,859,362.51
  5. Step 5: Solve for x
    x = 75,859,362.51/9,982.60
  6. Step 6: Final answer
    x = 7,599.16

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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.