Home / 66,006.40-99,007.92-19,259.68

Finding the Fourth Proportional to 66,006.40, 99,007.92 and 19,259.68

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Solution

The fourth proportional to 66,006.40, 99,007.92 and 19,259.68 is: 28,889.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,006.40 : 99,007.92 = 19,259.68 : x
  2. Step 2: Convert to fraction form
    66,006.40/99,007.92 = 19,259.68/x
  3. Step 3: Cross multiply
    66,006.40x = 99,007.92 × 19,259.68
  4. Step 4: Simplify right side
    66,006.40x = 1,906,860,856.67
  5. Step 5: Solve for x
    x = 1,906,860,856.67/66,006.40
  6. Step 6: Final answer
    x = 28,889.03

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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.