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Finding the Fourth Proportional to 29,345.28, 40,496.25 and 15,916.50

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Solution

The fourth proportional to 29,345.28, 40,496.25 and 15,916.50 is: 21,964.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,345.28 : 40,496.25 = 15,916.50 : x
  2. Step 2: Convert to fraction form
    29,345.28/40,496.25 = 15,916.50/x
  3. Step 3: Cross multiply
    29,345.28x = 40,496.25 × 15,916.50
  4. Step 4: Simplify right side
    29,345.28x = 644,558,563.13
  5. Step 5: Solve for x
    x = 644,558,563.13/29,345.28
  6. Step 6: Final answer
    x = 21,964.64

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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.