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Finding the Fourth Proportional to 58,374.86, 87,574.60 and 18,928.91

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Solution

The fourth proportional to 58,374.86, 87,574.60 and 18,928.91 is: 28,397.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,374.86 : 87,574.60 = 18,928.91 : x
  2. Step 2: Convert to fraction form
    58,374.86/87,574.60 = 18,928.91/x
  3. Step 3: Cross multiply
    58,374.86x = 87,574.60 × 18,928.91
  4. Step 4: Simplify right side
    58,374.86x = 1,657,691,471.68
  5. Step 5: Solve for x
    x = 1,657,691,471.68/58,374.86
  6. Step 6: Final answer
    x = 28,397.35

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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.