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Finding the Fourth Proportional to 58,439.64, 87,659.46 and 16,886.64

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Solution

The fourth proportional to 58,439.64, 87,659.46 and 16,886.64 is: 25,329.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,439.64 : 87,659.46 = 16,886.64 : x
  2. Step 2: Convert to fraction form
    58,439.64/87,659.46 = 16,886.64/x
  3. Step 3: Cross multiply
    58,439.64x = 87,659.46 × 16,886.64
  4. Step 4: Simplify right side
    58,439.64x = 1,480,273,743.61
  5. Step 5: Solve for x
    x = 1,480,273,743.61/58,439.64
  6. Step 6: Final answer
    x = 25,329.96

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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.