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Finding the Fourth Proportional to 56,653.20, 84,980.04 and 17,210.64

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Solution

The fourth proportional to 56,653.20, 84,980.04 and 17,210.64 is: 25,816.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,653.20 : 84,980.04 = 17,210.64 : x
  2. Step 2: Convert to fraction form
    56,653.20/84,980.04 = 17,210.64/x
  3. Step 3: Cross multiply
    56,653.20x = 84,980.04 × 17,210.64
  4. Step 4: Simplify right side
    56,653.20x = 1,462,560,875.63
  5. Step 5: Solve for x
    x = 1,462,560,875.63/56,653.20
  6. Step 6: Final answer
    x = 25,816.03

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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.