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Finding the Fourth Proportional to 19,670.84, 27,146.58 and 10,718.84

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Solution

The fourth proportional to 19,670.84, 27,146.58 and 10,718.84 is: 14,792.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.84 : 27,146.58 = 10,718.84 : x
  2. Step 2: Convert to fraction form
    19,670.84/27,146.58 = 10,718.84/x
  3. Step 3: Cross multiply
    19,670.84x = 27,146.58 × 10,718.84
  4. Step 4: Simplify right side
    19,670.84x = 290,979,847.57
  5. Step 5: Solve for x
    x = 290,979,847.57/19,670.84
  6. Step 6: Final answer
    x = 14,792.45

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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.