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Finding the Fourth Proportional to 6,875.70, 10,313.55 and 4,907.40

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Solution

The fourth proportional to 6,875.70, 10,313.55 and 4,907.40 is: 7,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.70 : 10,313.55 = 4,907.40 : x
  2. Step 2: Convert to fraction form
    6,875.70/10,313.55 = 4,907.40/x
  3. Step 3: Cross multiply
    6,875.70x = 10,313.55 × 4,907.40
  4. Step 4: Simplify right side
    6,875.70x = 50,612,715.27
  5. Step 5: Solve for x
    x = 50,612,715.27/6,875.70
  6. Step 6: Final answer
    x = 7,361.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.