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Finding the Fourth Proportional to 9,407.75, 14,158.88 and 7,079.81

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Solution

The fourth proportional to 9,407.75, 14,158.88 and 7,079.81 is: 10,655.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,407.75 : 14,158.88 = 7,079.81 : x
  2. Step 2: Convert to fraction form
    9,407.75/14,158.88 = 7,079.81/x
  3. Step 3: Cross multiply
    9,407.75x = 14,158.88 × 7,079.81
  4. Step 4: Simplify right side
    9,407.75x = 100,242,180.21
  5. Step 5: Solve for x
    x = 100,242,180.21/9,407.75
  6. Step 6: Final answer
    x = 10,655.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.