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Finding the Fourth Proportional to 58,661.60, 87,934.80 and 52,440.80

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Solution

The fourth proportional to 58,661.60, 87,934.80 and 52,440.80 is: 78,609.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,661.60 : 87,934.80 = 52,440.80 : x
  2. Step 2: Convert to fraction form
    58,661.60/87,934.80 = 52,440.80/x
  3. Step 3: Cross multiply
    58,661.60x = 87,934.80 × 52,440.80
  4. Step 4: Simplify right side
    58,661.60x = 4,611,371,259.84
  5. Step 5: Solve for x
    x = 4,611,371,259.84/58,661.60
  6. Step 6: Final answer
    x = 78,609.71

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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.