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Finding the Fourth Proportional to 56,488.96, 84,748.80 and 19,555.84

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Solution

The fourth proportional to 56,488.96, 84,748.80 and 19,555.84 is: 29,339.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,488.96 : 84,748.80 = 19,555.84 : x
  2. Step 2: Convert to fraction form
    56,488.96/84,748.80 = 19,555.84/x
  3. Step 3: Cross multiply
    56,488.96x = 84,748.80 × 19,555.84
  4. Step 4: Simplify right side
    56,488.96x = 1,657,333,972.99
  5. Step 5: Solve for x
    x = 1,657,333,972.99/56,488.96
  6. Step 6: Final answer
    x = 29,339.08

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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.