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Finding the Fourth Proportional to 58,682.40, 87,937.20 and 49,869.60

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Solution

The fourth proportional to 58,682.40, 87,937.20 and 49,869.60 is: 74,730.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,682.40 : 87,937.20 = 49,869.60 : x
  2. Step 2: Convert to fraction form
    58,682.40/87,937.20 = 49,869.60/x
  3. Step 3: Cross multiply
    58,682.40x = 87,937.20 × 49,869.60
  4. Step 4: Simplify right side
    58,682.40x = 4,385,392,989.12
  5. Step 5: Solve for x
    x = 4,385,392,989.12/58,682.40
  6. Step 6: Final answer
    x = 74,730.98

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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.