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Finding the Fourth Proportional to 58,336.64, 87,415.79 and 39,290.84

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Solution

The fourth proportional to 58,336.64, 87,415.79 and 39,290.84 is: 58,876.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,336.64 : 87,415.79 = 39,290.84 : x
  2. Step 2: Convert to fraction form
    58,336.64/87,415.79 = 39,290.84/x
  3. Step 3: Cross multiply
    58,336.64x = 87,415.79 × 39,290.84
  4. Step 4: Simplify right side
    58,336.64x = 3,434,639,818.36
  5. Step 5: Solve for x
    x = 3,434,639,818.36/58,336.64
  6. Step 6: Final answer
    x = 58,876.20

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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.