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Finding the Fourth Proportional to 29,323.98, 40,466.86 and 15,894.88

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Solution

The fourth proportional to 29,323.98, 40,466.86 and 15,894.88 is: 21,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,323.98 : 40,466.86 = 15,894.88 : x
  2. Step 2: Convert to fraction form
    29,323.98/40,466.86 = 15,894.88/x
  3. Step 3: Cross multiply
    29,323.98x = 40,466.86 × 15,894.88
  4. Step 4: Simplify right side
    29,323.98x = 643,215,742.77
  5. Step 5: Solve for x
    x = 643,215,742.77/29,323.98
  6. Step 6: Final answer
    x = 21,934.80

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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.