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Finding the Fourth Proportional to 10,689.66, 14,751.62 and 5,973.94

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Solution

The fourth proportional to 10,689.66, 14,751.62 and 5,973.94 is: 8,243.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,689.66 : 14,751.62 = 5,973.94 : x
  2. Step 2: Convert to fraction form
    10,689.66/14,751.62 = 5,973.94/x
  3. Step 3: Cross multiply
    10,689.66x = 14,751.62 × 5,973.94
  4. Step 4: Simplify right side
    10,689.66x = 88,125,189.16
  5. Step 5: Solve for x
    x = 88,125,189.16/10,689.66
  6. Step 6: Final answer
    x = 8,243.97

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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.