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Finding the Fourth Proportional to 29,663.31, 40,931.41 and 17,085.63

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Solution

The fourth proportional to 29,663.31, 40,931.41 and 17,085.63 is: 23,575.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,663.31 : 40,931.41 = 17,085.63 : x
  2. Step 2: Convert to fraction form
    29,663.31/40,931.41 = 17,085.63/x
  3. Step 3: Cross multiply
    29,663.31x = 40,931.41 × 17,085.63
  4. Step 4: Simplify right side
    29,663.31x = 699,338,926.64
  5. Step 5: Solve for x
    x = 699,338,926.64/29,663.31
  6. Step 6: Final answer
    x = 23,575.89

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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.