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Finding the Fourth Proportional to 6,444.63, 8,889.04 and 5,485.08

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Solution

The fourth proportional to 6,444.63, 8,889.04 and 5,485.08 is: 7,565.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,444.63 : 8,889.04 = 5,485.08 : x
  2. Step 2: Convert to fraction form
    6,444.63/8,889.04 = 5,485.08/x
  3. Step 3: Cross multiply
    6,444.63x = 8,889.04 × 5,485.08
  4. Step 4: Simplify right side
    6,444.63x = 48,757,135.71
  5. Step 5: Solve for x
    x = 48,757,135.71/6,444.63
  6. Step 6: Final answer
    x = 7,565.54

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Half scale
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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.