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Finding the Fourth Proportional to 14,042.09, 21,056.09 and 4,678.82

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Solution

The fourth proportional to 14,042.09, 21,056.09 and 4,678.82 is: 7,015.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,042.09 : 21,056.09 = 4,678.82 : x
  2. Step 2: Convert to fraction form
    14,042.09/21,056.09 = 4,678.82/x
  3. Step 3: Cross multiply
    14,042.09x = 21,056.09 × 4,678.82
  4. Step 4: Simplify right side
    14,042.09x = 98,517,526.34
  5. Step 5: Solve for x
    x = 98,517,526.34/14,042.09
  6. Step 6: Final answer
    x = 7,015.88

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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.