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Finding the Fourth Proportional to 6,467.64, 8,918.28 and 4,368.12

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Solution

The fourth proportional to 6,467.64, 8,918.28 and 4,368.12 is: 6,023.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,467.64 : 8,918.28 = 4,368.12 : x
  2. Step 2: Convert to fraction form
    6,467.64/8,918.28 = 4,368.12/x
  3. Step 3: Cross multiply
    6,467.64x = 8,918.28 × 4,368.12
  4. Step 4: Simplify right side
    6,467.64x = 38,956,117.23
  5. Step 5: Solve for x
    x = 38,956,117.23/6,467.64
  6. Step 6: Final answer
    x = 6,023.24

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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.