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Finding the Fourth Proportional to 9,036.64, 13,624.63 and 8,980.48

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Solution

The fourth proportional to 9,036.64, 13,624.63 and 8,980.48 is: 13,539.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,036.64 : 13,624.63 = 8,980.48 : x
  2. Step 2: Convert to fraction form
    9,036.64/13,624.63 = 8,980.48/x
  3. Step 3: Cross multiply
    9,036.64x = 13,624.63 × 8,980.48
  4. Step 4: Simplify right side
    9,036.64x = 122,355,717.22
  5. Step 5: Solve for x
    x = 122,355,717.22/9,036.64
  6. Step 6: Final answer
    x = 13,539.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.