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Finding the Fourth Proportional to 58,281.01, 80,427.54 and 33,130.51

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Solution

The fourth proportional to 58,281.01, 80,427.54 and 33,130.51 is: 45,719.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,281.01 : 80,427.54 = 33,130.51 : x
  2. Step 2: Convert to fraction form
    58,281.01/80,427.54 = 33,130.51/x
  3. Step 3: Cross multiply
    58,281.01x = 80,427.54 × 33,130.51
  4. Step 4: Simplify right side
    58,281.01x = 2,664,605,418.25
  5. Step 5: Solve for x
    x = 2,664,605,418.25/58,281.01
  6. Step 6: Final answer
    x = 45,719.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.