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Finding the Fourth Proportional to 58,203.97, 87,315.06 and 18,765.07

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Solution

The fourth proportional to 58,203.97, 87,315.06 and 18,765.07 is: 28,150.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,203.97 : 87,315.06 = 18,765.07 : x
  2. Step 2: Convert to fraction form
    58,203.97/87,315.06 = 18,765.07/x
  3. Step 3: Cross multiply
    58,203.97x = 87,315.06 × 18,765.07
  4. Step 4: Simplify right side
    58,203.97x = 1,638,473,065.04
  5. Step 5: Solve for x
    x = 1,638,473,065.04/58,203.97
  6. Step 6: Final answer
    x = 28,150.54

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1.5x scale

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.