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Finding the Fourth Proportional to 23,160.70, 34,658 and 20,051.40

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Solution

The fourth proportional to 23,160.70, 34,658 and 20,051.40 is: 30,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,160.70 : 34,658 = 20,051.40 : x
  2. Step 2: Convert to fraction form
    23,160.70/34,658 = 20,051.40/x
  3. Step 3: Cross multiply
    23,160.70x = 34,658 × 20,051.40
  4. Step 4: Simplify right side
    23,160.70x = 694,941,421.20
  5. Step 5: Solve for x
    x = 694,941,421.20/23,160.70
  6. Step 6: Final answer
    x = 30,005.20

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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.