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Finding the Fourth Proportional to 29,095.40, 43,643.51 and 8,318.90

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Solution

The fourth proportional to 29,095.40, 43,643.51 and 8,318.90 is: 12,478.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,095.40 : 43,643.51 = 8,318.90 : x
  2. Step 2: Convert to fraction form
    29,095.40/43,643.51 = 8,318.90/x
  3. Step 3: Cross multiply
    29,095.40x = 43,643.51 × 8,318.90
  4. Step 4: Simplify right side
    29,095.40x = 363,065,899.19
  5. Step 5: Solve for x
    x = 363,065,899.19/29,095.40
  6. Step 6: Final answer
    x = 12,478.46

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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.