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Finding the Fourth Proportional to 58,441.86, 87,663.96 and 18,998.88

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Solution

The fourth proportional to 58,441.86, 87,663.96 and 18,998.88 is: 28,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,441.86 : 87,663.96 = 18,998.88 : x
  2. Step 2: Convert to fraction form
    58,441.86/87,663.96 = 18,998.88/x
  3. Step 3: Cross multiply
    58,441.86x = 87,663.96 × 18,998.88
  4. Step 4: Simplify right side
    58,441.86x = 1,665,517,056.36
  5. Step 5: Solve for x
    x = 1,665,517,056.36/58,441.86
  6. Step 6: Final answer
    x = 28,498.70

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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.