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Finding the Fourth Proportional to 29,283.40, 40,404.18 and 16,712.20

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Solution

The fourth proportional to 29,283.40, 40,404.18 and 16,712.20 is: 23,058.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,283.40 : 40,404.18 = 16,712.20 : x
  2. Step 2: Convert to fraction form
    29,283.40/40,404.18 = 16,712.20/x
  3. Step 3: Cross multiply
    29,283.40x = 40,404.18 × 16,712.20
  4. Step 4: Simplify right side
    29,283.40x = 675,242,737.00
  5. Step 5: Solve for x
    x = 675,242,737.00/29,283.40
  6. Step 6: Final answer
    x = 23,058.89

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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.