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Finding the Fourth Proportional to 9,842.10, 14,760.51 and 6,721.57

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Solution

The fourth proportional to 9,842.10, 14,760.51 and 6,721.57 is: 10,080.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,842.10 : 14,760.51 = 6,721.57 : x
  2. Step 2: Convert to fraction form
    9,842.10/14,760.51 = 6,721.57/x
  3. Step 3: Cross multiply
    9,842.10x = 14,760.51 × 6,721.57
  4. Step 4: Simplify right side
    9,842.10x = 99,213,801.20
  5. Step 5: Solve for x
    x = 99,213,801.20/9,842.10
  6. Step 6: Final answer
    x = 10,080.55

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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.