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Finding the Fourth Proportional to 56,612.70, 78,061.23 and 36,167.67

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Solution

The fourth proportional to 56,612.70, 78,061.23 and 36,167.67 is: 49,870.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,612.70 : 78,061.23 = 36,167.67 : x
  2. Step 2: Convert to fraction form
    56,612.70/78,061.23 = 36,167.67/x
  3. Step 3: Cross multiply
    56,612.70x = 78,061.23 × 36,167.67
  4. Step 4: Simplify right side
    56,612.70x = 2,823,292,806.43
  5. Step 5: Solve for x
    x = 2,823,292,806.43/56,612.70
  6. Step 6: Final answer
    x = 49,870.31

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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.