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Finding the Fourth Proportional to 56,496.44, 77,971.74 and 31,347.56

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Solution

The fourth proportional to 56,496.44, 77,971.74 and 31,347.56 is: 43,263.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,496.44 : 77,971.74 = 31,347.56 : x
  2. Step 2: Convert to fraction form
    56,496.44/77,971.74 = 31,347.56/x
  3. Step 3: Cross multiply
    56,496.44x = 77,971.74 × 31,347.56
  4. Step 4: Simplify right side
    56,496.44x = 2,444,223,797.95
  5. Step 5: Solve for x
    x = 2,444,223,797.95/56,496.44
  6. Step 6: Final answer
    x = 43,263.32

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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.