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Finding the Fourth Proportional to 56,889.92, 78,507.96 and 33,030.56

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Solution

The fourth proportional to 56,889.92, 78,507.96 and 33,030.56 is: 45,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,889.92 : 78,507.96 = 33,030.56 : x
  2. Step 2: Convert to fraction form
    56,889.92/78,507.96 = 33,030.56/x
  3. Step 3: Cross multiply
    56,889.92x = 78,507.96 × 33,030.56
  4. Step 4: Simplify right side
    56,889.92x = 2,593,161,883.26
  5. Step 5: Solve for x
    x = 2,593,161,883.26/56,889.92
  6. Step 6: Final answer
    x = 45,582.10

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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.