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Finding the Fourth Proportional to 56,234.95, 77,604.95 and 30,740.91

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Solution

The fourth proportional to 56,234.95, 77,604.95 and 30,740.91 is: 42,422.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,234.95 : 77,604.95 = 30,740.91 : x
  2. Step 2: Convert to fraction form
    56,234.95/77,604.95 = 30,740.91/x
  3. Step 3: Cross multiply
    56,234.95x = 77,604.95 × 30,740.91
  4. Step 4: Simplify right side
    56,234.95x = 2,385,646,783.50
  5. Step 5: Solve for x
    x = 2,385,646,783.50/56,234.95
  6. Step 6: Final answer
    x = 42,422.85

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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.