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Finding the Fourth Proportional to 56,595.20, 84,892.80 and 19,659.20

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Solution

The fourth proportional to 56,595.20, 84,892.80 and 19,659.20 is: 29,488.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,595.20 : 84,892.80 = 19,659.20 : x
  2. Step 2: Convert to fraction form
    56,595.20/84,892.80 = 19,659.20/x
  3. Step 3: Cross multiply
    56,595.20x = 84,892.80 × 19,659.20
  4. Step 4: Simplify right side
    56,595.20x = 1,668,924,533.76
  5. Step 5: Solve for x
    x = 1,668,924,533.76/56,595.20
  6. Step 6: Final answer
    x = 29,488.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.