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Finding the Fourth Proportional to 56,052, 77,351.76 and 30,901.50

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Solution

The fourth proportional to 56,052, 77,351.76 and 30,901.50 is: 42,644.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,052 : 77,351.76 = 30,901.50 : x
  2. Step 2: Convert to fraction form
    56,052/77,351.76 = 30,901.50/x
  3. Step 3: Cross multiply
    56,052x = 77,351.76 × 30,901.50
  4. Step 4: Simplify right side
    56,052x = 2,390,285,411.64
  5. Step 5: Solve for x
    x = 2,390,285,411.64/56,052
  6. Step 6: Final answer
    x = 42,644.07

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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.