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Finding the Fourth Proportional to 14,042.09, 21,068.87 and 9,047.08

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Solution

The fourth proportional to 14,042.09, 21,068.87 and 9,047.08 is: 13,574.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,042.09 : 21,068.87 = 9,047.08 : x
  2. Step 2: Convert to fraction form
    14,042.09/21,068.87 = 9,047.08/x
  3. Step 3: Cross multiply
    14,042.09x = 21,068.87 × 9,047.08
  4. Step 4: Simplify right side
    14,042.09x = 190,611,722.35
  5. Step 5: Solve for x
    x = 190,611,722.35/14,042.09
  6. Step 6: Final answer
    x = 13,574.31

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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.