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Finding the Fourth Proportional to 8,574.32, 11,832.72 and 4,848.32

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Solution

The fourth proportional to 8,574.32, 11,832.72 and 4,848.32 is: 6,690.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,574.32 : 11,832.72 = 4,848.32 : x
  2. Step 2: Convert to fraction form
    8,574.32/11,832.72 = 4,848.32/x
  3. Step 3: Cross multiply
    8,574.32x = 11,832.72 × 4,848.32
  4. Step 4: Simplify right side
    8,574.32x = 57,368,813.03
  5. Step 5: Solve for x
    x = 57,368,813.03/8,574.32
  6. Step 6: Final answer
    x = 6,690.77

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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.