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Finding the Fourth Proportional to 56,886.67, 78,470.46 and 36,461.45

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Solution

The fourth proportional to 56,886.67, 78,470.46 and 36,461.45 is: 50,295.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,886.67 : 78,470.46 = 36,461.45 : x
  2. Step 2: Convert to fraction form
    56,886.67/78,470.46 = 36,461.45/x
  3. Step 3: Cross multiply
    56,886.67x = 78,470.46 × 36,461.45
  4. Step 4: Simplify right side
    56,886.67x = 2,861,146,949.94
  5. Step 5: Solve for x
    x = 2,861,146,949.94/56,886.67
  6. Step 6: Final answer
    x = 50,295.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.