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Finding the Fourth Proportional to 29,977.80, 44,966.70 and 18,848.40

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Solution

The fourth proportional to 29,977.80, 44,966.70 and 18,848.40 is: 28,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,977.80 : 44,966.70 = 18,848.40 : x
  2. Step 2: Convert to fraction form
    29,977.80/44,966.70 = 18,848.40/x
  3. Step 3: Cross multiply
    29,977.80x = 44,966.70 × 18,848.40
  4. Step 4: Simplify right side
    29,977.80x = 847,550,348.28
  5. Step 5: Solve for x
    x = 847,550,348.28/29,977.80
  6. Step 6: Final answer
    x = 28,272.60

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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.