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Finding the Fourth Proportional to 14,345.69, 19,798.90 and 8,059.28

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Solution

The fourth proportional to 14,345.69, 19,798.90 and 8,059.28 is: 11,122.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,345.69 : 19,798.90 = 8,059.28 : x
  2. Step 2: Convert to fraction form
    14,345.69/19,798.90 = 8,059.28/x
  3. Step 3: Cross multiply
    14,345.69x = 19,798.90 × 8,059.28
  4. Step 4: Simplify right side
    14,345.69x = 159,564,955.28
  5. Step 5: Solve for x
    x = 159,564,955.28/14,345.69
  6. Step 6: Final answer
    x = 11,122.85

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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.