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Finding the Fourth Proportional to 58,165.80, 87,256.95 and 18,713.73

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Solution

The fourth proportional to 58,165.80, 87,256.95 and 18,713.73 is: 28,073.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,165.80 : 87,256.95 = 18,713.73 : x
  2. Step 2: Convert to fraction form
    58,165.80/87,256.95 = 18,713.73/x
  3. Step 3: Cross multiply
    58,165.80x = 87,256.95 × 18,713.73
  4. Step 4: Simplify right side
    58,165.80x = 1,632,903,259.96
  5. Step 5: Solve for x
    x = 1,632,903,259.96/58,165.80
  6. Step 6: Final answer
    x = 28,073.26

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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.