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Finding the Fourth Proportional to 58,653.86, 87,979.92 and 14,280.70

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Solution

The fourth proportional to 58,653.86, 87,979.92 and 14,280.70 is: 21,420.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,653.86 : 87,979.92 = 14,280.70 : x
  2. Step 2: Convert to fraction form
    58,653.86/87,979.92 = 14,280.70/x
  3. Step 3: Cross multiply
    58,653.86x = 87,979.92 × 14,280.70
  4. Step 4: Simplify right side
    58,653.86x = 1,256,414,843.54
  5. Step 5: Solve for x
    x = 1,256,414,843.54/58,653.86
  6. Step 6: Final answer
    x = 21,420.84

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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.