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Finding the Third Proportional to 19,987 and 29,332.50

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Solution

The third proportional to 19,987 and 29,332.50 is: 43,047.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987 : 29,332.50 = 29,332.50 : x
  2. Step 2: Convert to fraction form
    19,987/29,332.50 = 29,332.50/x
  3. Step 3: Cross multiply
    19,987x = 29,332.50 × 29,332.50
  4. Step 4: Simplify right side
    19,987x = 860,395,556.25
  5. Step 5: Solve for x
    x = 860,395,556.25/19,987
  6. Step 6: Final answer
    x = 43,047.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.