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Finding the Fourth Proportional to 23,658.30, 35,457.30 and 12,570.30

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Solution

The fourth proportional to 23,658.30, 35,457.30 and 12,570.30 is: 18,839.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,658.30 : 35,457.30 = 12,570.30 : x
  2. Step 2: Convert to fraction form
    23,658.30/35,457.30 = 12,570.30/x
  3. Step 3: Cross multiply
    23,658.30x = 35,457.30 × 12,570.30
  4. Step 4: Simplify right side
    23,658.30x = 445,708,898.19
  5. Step 5: Solve for x
    x = 445,708,898.19/23,658.30
  6. Step 6: Final answer
    x = 18,839.43

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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.