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Finding the Fourth Proportional to 14,358.25, 19,814.19 and 8,070.64

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Solution

The fourth proportional to 14,358.25, 19,814.19 and 8,070.64 is: 11,137.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,358.25 : 19,814.19 = 8,070.64 : x
  2. Step 2: Convert to fraction form
    14,358.25/19,814.19 = 8,070.64/x
  3. Step 3: Cross multiply
    14,358.25x = 19,814.19 × 8,070.64
  4. Step 4: Simplify right side
    14,358.25x = 159,913,194.38
  5. Step 5: Solve for x
    x = 159,913,194.38/14,358.25
  6. Step 6: Final answer
    x = 11,137.37

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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.