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Finding the Fourth Proportional to 56,483.76, 77,950.14 and 31,333.28

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Solution

The fourth proportional to 56,483.76, 77,950.14 and 31,333.28 is: 43,241.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,483.76 : 77,950.14 = 31,333.28 : x
  2. Step 2: Convert to fraction form
    56,483.76/77,950.14 = 31,333.28/x
  3. Step 3: Cross multiply
    56,483.76x = 77,950.14 × 31,333.28
  4. Step 4: Simplify right side
    56,483.76x = 2,442,433,562.66
  5. Step 5: Solve for x
    x = 2,442,433,562.66/56,483.76
  6. Step 6: Final answer
    x = 43,241.34

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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.