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Finding the Fourth Proportional to 7,662.32, 11,485.31 and 4,368.32

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Solution

The fourth proportional to 7,662.32, 11,485.31 and 4,368.32 is: 6,547.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,662.32 : 11,485.31 = 4,368.32 : x
  2. Step 2: Convert to fraction form
    7,662.32/11,485.31 = 4,368.32/x
  3. Step 3: Cross multiply
    7,662.32x = 11,485.31 × 4,368.32
  4. Step 4: Simplify right side
    7,662.32x = 50,171,430.11
  5. Step 5: Solve for x
    x = 50,171,430.11/7,662.32
  6. Step 6: Final answer
    x = 6,547.82

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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.