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Finding the Fourth Proportional to 10,395.61, 14,361.12 and 8,995.93

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Solution

The fourth proportional to 10,395.61, 14,361.12 and 8,995.93 is: 12,427.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,395.61 : 14,361.12 = 8,995.93 : x
  2. Step 2: Convert to fraction form
    10,395.61/14,361.12 = 8,995.93/x
  3. Step 3: Cross multiply
    10,395.61x = 14,361.12 × 8,995.93
  4. Step 4: Simplify right side
    10,395.61x = 129,191,630.24
  5. Step 5: Solve for x
    x = 129,191,630.24/10,395.61
  6. Step 6: Final answer
    x = 12,427.52

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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.