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Finding the Fourth Proportional to 10,510.44, 14,510.34 and 6,978.48

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Solution

The fourth proportional to 10,510.44, 14,510.34 and 6,978.48 is: 9,634.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,510.44 : 14,510.34 = 6,978.48 : x
  2. Step 2: Convert to fraction form
    10,510.44/14,510.34 = 6,978.48/x
  3. Step 3: Cross multiply
    10,510.44x = 14,510.34 × 6,978.48
  4. Step 4: Simplify right side
    10,510.44x = 101,260,117.48
  5. Step 5: Solve for x
    x = 101,260,117.48/10,510.44
  6. Step 6: Final answer
    x = 9,634.24

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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.