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Finding the Fourth Proportional to 14,159.71, 19,511.61 and 10,953.54

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Solution

The fourth proportional to 14,159.71, 19,511.61 and 10,953.54 is: 15,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,159.71 : 19,511.61 = 10,953.54 : x
  2. Step 2: Convert to fraction form
    14,159.71/19,511.61 = 10,953.54/x
  3. Step 3: Cross multiply
    14,159.71x = 19,511.61 × 10,953.54
  4. Step 4: Simplify right side
    14,159.71x = 213,721,048.27
  5. Step 5: Solve for x
    x = 213,721,048.27/14,159.71
  6. Step 6: Final answer
    x = 15,093.60

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1.5x scale

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.