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Finding the Fourth Proportional to 29,287.40, 43,931.10 and 14,498.60

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Solution

The fourth proportional to 29,287.40, 43,931.10 and 14,498.60 is: 21,747.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,287.40 : 43,931.10 = 14,498.60 : x
  2. Step 2: Convert to fraction form
    29,287.40/43,931.10 = 14,498.60/x
  3. Step 3: Cross multiply
    29,287.40x = 43,931.10 × 14,498.60
  4. Step 4: Simplify right side
    29,287.40x = 636,939,446.46
  5. Step 5: Solve for x
    x = 636,939,446.46/29,287.40
  6. Step 6: Final answer
    x = 21,747.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.