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Finding the Fourth Proportional to 66,411.36, 99,578.64 and 22,026.24

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Solution

The fourth proportional to 66,411.36, 99,578.64 and 22,026.24 is: 33,026.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,411.36 : 99,578.64 = 22,026.24 : x
  2. Step 2: Convert to fraction form
    66,411.36/99,578.64 = 22,026.24/x
  3. Step 3: Cross multiply
    66,411.36x = 99,578.64 × 22,026.24
  4. Step 4: Simplify right side
    66,411.36x = 2,193,343,023.51
  5. Step 5: Solve for x
    x = 2,193,343,023.51/66,411.36
  6. Step 6: Final answer
    x = 33,026.62

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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.