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Finding the Fourth Proportional to 56,380.98, 77,800.05 and 33,715.47

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Solution

The fourth proportional to 56,380.98, 77,800.05 and 33,715.47 is: 46,523.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,380.98 : 77,800.05 = 33,715.47 : x
  2. Step 2: Convert to fraction form
    56,380.98/77,800.05 = 33,715.47/x
  3. Step 3: Cross multiply
    56,380.98x = 77,800.05 × 33,715.47
  4. Step 4: Simplify right side
    56,380.98x = 2,623,065,251.77
  5. Step 5: Solve for x
    x = 2,623,065,251.77/56,380.98
  6. Step 6: Final answer
    x = 46,523.94

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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.