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Finding the Fourth Proportional to 18,353.60, 27,282.92 and 17,814.81

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Solution

The fourth proportional to 18,353.60, 27,282.92 and 17,814.81 is: 26,482.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,353.60 : 27,282.92 = 17,814.81 : x
  2. Step 2: Convert to fraction form
    18,353.60/27,282.92 = 17,814.81/x
  3. Step 3: Cross multiply
    18,353.60x = 27,282.92 × 17,814.81
  4. Step 4: Simplify right side
    18,353.60x = 486,039,946.97
  5. Step 5: Solve for x
    x = 486,039,946.97/18,353.60
  6. Step 6: Final answer
    x = 26,482.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.