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Finding the Fourth Proportional to 19,407, 26,785.98 and 12,332.04

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Solution

The fourth proportional to 19,407, 26,785.98 and 12,332.04 is: 17,020.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,407 : 26,785.98 = 12,332.04 : x
  2. Step 2: Convert to fraction form
    19,407/26,785.98 = 12,332.04/x
  3. Step 3: Cross multiply
    19,407x = 26,785.98 × 12,332.04
  4. Step 4: Simplify right side
    19,407x = 330,325,776.80
  5. Step 5: Solve for x
    x = 330,325,776.80/19,407
  6. Step 6: Final answer
    x = 17,020.96

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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.