Home / 66,411.15-99,633.32-19,030.20

Finding the Fourth Proportional to 66,411.15, 99,633.32 and 19,030.20

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Solution

The fourth proportional to 66,411.15, 99,633.32 and 19,030.20 is: 28,550.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,411.15 : 99,633.32 = 19,030.20 : x
  2. Step 2: Convert to fraction form
    66,411.15/99,633.32 = 19,030.20/x
  3. Step 3: Cross multiply
    66,411.15x = 99,633.32 × 19,030.20
  4. Step 4: Simplify right side
    66,411.15x = 1,896,042,006.26
  5. Step 5: Solve for x
    x = 1,896,042,006.26/66,411.15
  6. Step 6: Final answer
    x = 28,550.06

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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.