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Finding the Fourth Proportional to 18,547.79, 27,809.98 and 10,233.60

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Solution

The fourth proportional to 18,547.79, 27,809.98 and 10,233.60 is: 15,343.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,547.79 : 27,809.98 = 10,233.60 : x
  2. Step 2: Convert to fraction form
    18,547.79/27,809.98 = 10,233.60/x
  3. Step 3: Cross multiply
    18,547.79x = 27,809.98 × 10,233.60
  4. Step 4: Simplify right side
    18,547.79x = 284,596,211.33
  5. Step 5: Solve for x
    x = 284,596,211.33/18,547.79
  6. Step 6: Final answer
    x = 15,343.94

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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.