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Finding the Fourth Proportional to 7,579.50, 10,459.74 and 4,267.50

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Solution

The fourth proportional to 7,579.50, 10,459.74 and 4,267.50 is: 5,889.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,579.50 : 10,459.74 = 4,267.50 : x
  2. Step 2: Convert to fraction form
    7,579.50/10,459.74 = 4,267.50/x
  3. Step 3: Cross multiply
    7,579.50x = 10,459.74 × 4,267.50
  4. Step 4: Simplify right side
    7,579.50x = 44,636,940.45
  5. Step 5: Solve for x
    x = 44,636,940.45/7,579.50
  6. Step 6: Final answer
    x = 5,889.17

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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.