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Finding the Fourth Proportional to 56,902.96, 78,526.02 and 33,030.64

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Solution

The fourth proportional to 56,902.96, 78,526.02 and 33,030.64 is: 45,582.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,902.96 : 78,526.02 = 33,030.64 : x
  2. Step 2: Convert to fraction form
    56,902.96/78,526.02 = 33,030.64/x
  3. Step 3: Cross multiply
    56,902.96x = 78,526.02 × 33,030.64
  4. Step 4: Simplify right side
    56,902.96x = 2,593,764,697.25
  5. Step 5: Solve for x
    x = 2,593,764,697.25/56,902.96
  6. Step 6: Final answer
    x = 45,582.25

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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.