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Finding the Fourth Proportional to 54,875.58, 82,256.87 and 21,582.15

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Solution

The fourth proportional to 54,875.58, 82,256.87 and 21,582.15 is: 32,351.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,875.58 : 82,256.87 = 21,582.15 : x
  2. Step 2: Convert to fraction form
    54,875.58/82,256.87 = 21,582.15/x
  3. Step 3: Cross multiply
    54,875.58x = 82,256.87 × 21,582.15
  4. Step 4: Simplify right side
    54,875.58x = 1,775,280,106.87
  5. Step 5: Solve for x
    x = 1,775,280,106.87/54,875.58
  6. Step 6: Final answer
    x = 32,351.00

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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.