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Finding the Fourth Proportional to 29,236.32, 40,346.04 and 15,807.48

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Solution

The fourth proportional to 29,236.32, 40,346.04 and 15,807.48 is: 21,814.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,236.32 : 40,346.04 = 15,807.48 : x
  2. Step 2: Convert to fraction form
    29,236.32/40,346.04 = 15,807.48/x
  3. Step 3: Cross multiply
    29,236.32x = 40,346.04 × 15,807.48
  4. Step 4: Simplify right side
    29,236.32x = 637,769,220.38
  5. Step 5: Solve for x
    x = 637,769,220.38/29,236.32
  6. Step 6: Final answer
    x = 21,814.28

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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.