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Finding the Fourth Proportional to 24,790.50, 34,210.89 and 13,612.50

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Solution

The fourth proportional to 24,790.50, 34,210.89 and 13,612.50 is: 18,785.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,790.50 : 34,210.89 = 13,612.50 : x
  2. Step 2: Convert to fraction form
    24,790.50/34,210.89 = 13,612.50/x
  3. Step 3: Cross multiply
    24,790.50x = 34,210.89 × 13,612.50
  4. Step 4: Simplify right side
    24,790.50x = 465,695,740.13
  5. Step 5: Solve for x
    x = 465,695,740.13/24,790.50
  6. Step 6: Final answer
    x = 18,785.25

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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.