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Finding the Fourth Proportional to 11,595.60, 16,005.84 and 7,816.32

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Solution

The fourth proportional to 11,595.60, 16,005.84 and 7,816.32 is: 10,789.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,595.60 : 16,005.84 = 7,816.32 : x
  2. Step 2: Convert to fraction form
    11,595.60/16,005.84 = 7,816.32/x
  3. Step 3: Cross multiply
    11,595.60x = 16,005.84 × 7,816.32
  4. Step 4: Simplify right side
    11,595.60x = 125,106,767.31
  5. Step 5: Solve for x
    x = 125,106,767.31/11,595.60
  6. Step 6: Final answer
    x = 10,789.16

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Similar ratio
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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.