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Finding the Fourth Proportional to 56,798.58, 78,374.85 and 32,921.94

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Solution

The fourth proportional to 56,798.58, 78,374.85 and 32,921.94 is: 45,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,798.58 : 78,374.85 = 32,921.94 : x
  2. Step 2: Convert to fraction form
    56,798.58/78,374.85 = 32,921.94/x
  3. Step 3: Cross multiply
    56,798.58x = 78,374.85 × 32,921.94
  4. Step 4: Simplify right side
    56,798.58x = 2,580,252,109.21
  5. Step 5: Solve for x
    x = 2,580,252,109.21/56,798.58
  6. Step 6: Final answer
    x = 45,428.11

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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.