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Finding the Fourth Proportional to 19,853.56, 29,792.18 and 7,374.70

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Solution

The fourth proportional to 19,853.56, 29,792.18 and 7,374.70 is: 11,066.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,853.56 : 29,792.18 = 7,374.70 : x
  2. Step 2: Convert to fraction form
    19,853.56/29,792.18 = 7,374.70/x
  3. Step 3: Cross multiply
    19,853.56x = 29,792.18 × 7,374.70
  4. Step 4: Simplify right side
    19,853.56x = 219,708,389.85
  5. Step 5: Solve for x
    x = 219,708,389.85/19,853.56
  6. Step 6: Final answer
    x = 11,066.45

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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.