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Finding the Fourth Proportional to 6,459.21, 8,916.87 and 4,333.98

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Solution

The fourth proportional to 6,459.21, 8,916.87 and 4,333.98 is: 5,983.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,459.21 : 8,916.87 = 4,333.98 : x
  2. Step 2: Convert to fraction form
    6,459.21/8,916.87 = 4,333.98/x
  3. Step 3: Cross multiply
    6,459.21x = 8,916.87 × 4,333.98
  4. Step 4: Simplify right side
    6,459.21x = 38,645,536.24
  5. Step 5: Solve for x
    x = 38,645,536.24/6,459.21
  6. Step 6: Final answer
    x = 5,983.01

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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.