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Finding the Fourth Proportional to 7,675.90, 10,591.99 and 4,318.64

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Solution

The fourth proportional to 7,675.90, 10,591.99 and 4,318.64 is: 5,959.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,675.90 : 10,591.99 = 4,318.64 : x
  2. Step 2: Convert to fraction form
    7,675.90/10,591.99 = 4,318.64/x
  3. Step 3: Cross multiply
    7,675.90x = 10,591.99 × 4,318.64
  4. Step 4: Simplify right side
    7,675.90x = 45,742,970.10
  5. Step 5: Solve for x
    x = 45,742,970.10/7,675.90
  6. Step 6: Final answer
    x = 5,959.30

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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.