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Finding the Fourth Proportional to 29,466.48, 40,663.32 and 16,890.48

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Solution

The fourth proportional to 29,466.48, 40,663.32 and 16,890.48 is: 23,308.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,466.48 : 40,663.32 = 16,890.48 : x
  2. Step 2: Convert to fraction form
    29,466.48/40,663.32 = 16,890.48/x
  3. Step 3: Cross multiply
    29,466.48x = 40,663.32 × 16,890.48
  4. Step 4: Simplify right side
    29,466.48x = 686,822,993.19
  5. Step 5: Solve for x
    x = 686,822,993.19/29,466.48
  6. Step 6: Final answer
    x = 23,308.62

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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.