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Finding the Fourth Proportional to 66,312.57, 99,465.67 and 16,392.48

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Solution

The fourth proportional to 66,312.57, 99,465.67 and 16,392.48 is: 24,587.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,312.57 : 99,465.67 = 16,392.48 : x
  2. Step 2: Convert to fraction form
    66,312.57/99,465.67 = 16,392.48/x
  3. Step 3: Cross multiply
    66,312.57x = 99,465.67 × 16,392.48
  4. Step 4: Simplify right side
    66,312.57x = 1,630,488,653.66
  5. Step 5: Solve for x
    x = 1,630,488,653.66/66,312.57
  6. Step 6: Final answer
    x = 24,587.93

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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.