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Finding the Fourth Proportional to 19,359.59, 29,039.40 and 5,508.59

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Solution

The fourth proportional to 19,359.59, 29,039.40 and 5,508.59 is: 8,262.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,359.59 : 29,039.40 = 5,508.59 : x
  2. Step 2: Convert to fraction form
    19,359.59/29,039.40 = 5,508.59/x
  3. Step 3: Cross multiply
    19,359.59x = 29,039.40 × 5,508.59
  4. Step 4: Simplify right side
    19,359.59x = 159,966,148.45
  5. Step 5: Solve for x
    x = 159,966,148.45/19,359.59
  6. Step 6: Final answer
    x = 8,262.89

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1.5x scale

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.