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Finding the Fourth Proportional to 14,041.75, 21,068.78 and 6,651.49

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Solution

The fourth proportional to 14,041.75, 21,068.78 and 6,651.49 is: 9,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,041.75 : 21,068.78 = 6,651.49 : x
  2. Step 2: Convert to fraction form
    14,041.75/21,068.78 = 6,651.49/x
  3. Step 3: Cross multiply
    14,041.75x = 21,068.78 × 6,651.49
  4. Step 4: Simplify right side
    14,041.75x = 140,138,746.22
  5. Step 5: Solve for x
    x = 140,138,746.22/14,041.75
  6. Step 6: Final answer
    x = 9,980.15

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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.