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Finding the Fourth Proportional to 58,385.89, 87,578.80 and 18,943.01

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Solution

The fourth proportional to 58,385.89, 87,578.80 and 18,943.01 is: 28,414.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,385.89 : 87,578.80 = 18,943.01 : x
  2. Step 2: Convert to fraction form
    58,385.89/87,578.80 = 18,943.01/x
  3. Step 3: Cross multiply
    58,385.89x = 87,578.80 × 18,943.01
  4. Step 4: Simplify right side
    58,385.89x = 1,659,005,598.94
  5. Step 5: Solve for x
    x = 1,659,005,598.94/58,385.89
  6. Step 6: Final answer
    x = 28,414.50

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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.