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Finding the Fourth Proportional to 56,903.96, 78,529.92 and 31,753.46

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Solution

The fourth proportional to 56,903.96, 78,529.92 and 31,753.46 is: 43,821.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,903.96 : 78,529.92 = 31,753.46 : x
  2. Step 2: Convert to fraction form
    56,903.96/78,529.92 = 31,753.46/x
  3. Step 3: Cross multiply
    56,903.96x = 78,529.92 × 31,753.46
  4. Step 4: Simplify right side
    56,903.96x = 2,493,596,673.52
  5. Step 5: Solve for x
    x = 2,493,596,673.52/56,903.96
  6. Step 6: Final answer
    x = 43,821.14

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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.