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Finding the Fourth Proportional to 14,443.85, 19,932.53 and 8,070.45

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Solution

The fourth proportional to 14,443.85, 19,932.53 and 8,070.45 is: 11,137.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,443.85 : 19,932.53 = 8,070.45 : x
  2. Step 2: Convert to fraction form
    14,443.85/19,932.53 = 8,070.45/x
  3. Step 3: Cross multiply
    14,443.85x = 19,932.53 × 8,070.45
  4. Step 4: Simplify right side
    14,443.85x = 160,864,446.39
  5. Step 5: Solve for x
    x = 160,864,446.39/14,443.85
  6. Step 6: Final answer
    x = 11,137.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.