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Finding the Fourth Proportional to 29,354.78, 40,499.78 and 16,606.20

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Solution

The fourth proportional to 29,354.78, 40,499.78 and 16,606.20 is: 22,911.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,354.78 : 40,499.78 = 16,606.20 : x
  2. Step 2: Convert to fraction form
    29,354.78/40,499.78 = 16,606.20/x
  3. Step 3: Cross multiply
    29,354.78x = 40,499.78 × 16,606.20
  4. Step 4: Simplify right side
    29,354.78x = 672,547,446.64
  5. Step 5: Solve for x
    x = 672,547,446.64/29,354.78
  6. Step 6: Final answer
    x = 22,911.00

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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.