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Finding the Fourth Proportional to 54,068.96, 81,090.48 and 18,526.16

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Solution

The fourth proportional to 54,068.96, 81,090.48 and 18,526.16 is: 27,784.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,068.96 : 81,090.48 = 18,526.16 : x
  2. Step 2: Convert to fraction form
    54,068.96/81,090.48 = 18,526.16/x
  3. Step 3: Cross multiply
    54,068.96x = 81,090.48 × 18,526.16
  4. Step 4: Simplify right side
    54,068.96x = 1,502,295,206.96
  5. Step 5: Solve for x
    x = 1,502,295,206.96/54,068.96
  6. Step 6: Final answer
    x = 27,784.80

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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.