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Finding the Fourth Proportional to 56,313.64, 84,415.86 and 31,330.84

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Solution

The fourth proportional to 56,313.64, 84,415.86 and 31,330.84 is: 46,965.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,313.64 : 84,415.86 = 31,330.84 : x
  2. Step 2: Convert to fraction form
    56,313.64/84,415.86 = 31,330.84/x
  3. Step 3: Cross multiply
    56,313.64x = 84,415.86 × 31,330.84
  4. Step 4: Simplify right side
    56,313.64x = 2,644,819,803.12
  5. Step 5: Solve for x
    x = 2,644,819,803.12/56,313.64
  6. Step 6: Final answer
    x = 46,965.88

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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.