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Finding the Fourth Proportional to 11,579.64, 15,980.54 and 6,544.08

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Solution

The fourth proportional to 11,579.64, 15,980.54 and 6,544.08 is: 9,031.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.64 : 15,980.54 = 6,544.08 : x
  2. Step 2: Convert to fraction form
    11,579.64/15,980.54 = 6,544.08/x
  3. Step 3: Cross multiply
    11,579.64x = 15,980.54 × 6,544.08
  4. Step 4: Simplify right side
    11,579.64x = 104,577,899.48
  5. Step 5: Solve for x
    x = 104,577,899.48/11,579.64
  6. Step 6: Final answer
    x = 9,031.19

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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.