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Finding the Fourth Proportional to 58,725.84, 81,018.12 and 33,570

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Solution

The fourth proportional to 58,725.84, 81,018.12 and 33,570 is: 46,313.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,725.84 : 81,018.12 = 33,570 : x
  2. Step 2: Convert to fraction form
    58,725.84/81,018.12 = 33,570/x
  3. Step 3: Cross multiply
    58,725.84x = 81,018.12 × 33,570
  4. Step 4: Simplify right side
    58,725.84x = 2,719,778,288.40
  5. Step 5: Solve for x
    x = 2,719,778,288.40/58,725.84
  6. Step 6: Final answer
    x = 46,313.14

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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.