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Finding the Fourth Proportional to 19,590.63, 29,385.87 and 7,110.63

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Solution

The fourth proportional to 19,590.63, 29,385.87 and 7,110.63 is: 10,665.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,590.63 : 29,385.87 = 7,110.63 : x
  2. Step 2: Convert to fraction form
    19,590.63/29,385.87 = 7,110.63/x
  3. Step 3: Cross multiply
    19,590.63x = 29,385.87 × 7,110.63
  4. Step 4: Simplify right side
    19,590.63x = 208,952,048.80
  5. Step 5: Solve for x
    x = 208,952,048.80/19,590.63
  6. Step 6: Final answer
    x = 10,665.92

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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.