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Finding the Fourth Proportional to 19,699,649.70, 29,549,474.55 and 5,324,936.10

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Solution

The fourth proportional to 19,699,649.70, 29,549,474.55 and 5,324,936.10 is: 7,987,404.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,699,649.70 : 29,549,474.55 = 5,324,936.10 : x
  2. Step 2: Convert to fraction form
    19,699,649.70/29,549,474.55 = 5,324,936.10/x
  3. Step 3: Cross multiply
    19,699,649.70x = 29,549,474.55 × 5,324,936.10
  4. Step 4: Simplify right side
    19,699,649.70x = 157,349,063,767,326.25
  5. Step 5: Solve for x
    x = 157,349,063,767,326.25/19,699,649.70
  6. Step 6: Final answer
    x = 7,987,404.15

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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.