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Finding the Fourth Proportional to 18,365.20, 27,547.80 and 9,602.80

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Solution

The fourth proportional to 18,365.20, 27,547.80 and 9,602.80 is: 14,404.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,365.20 : 27,547.80 = 9,602.80 : x
  2. Step 2: Convert to fraction form
    18,365.20/27,547.80 = 9,602.80/x
  3. Step 3: Cross multiply
    18,365.20x = 27,547.80 × 9,602.80
  4. Step 4: Simplify right side
    18,365.20x = 264,536,013.84
  5. Step 5: Solve for x
    x = 264,536,013.84/18,365.20
  6. Step 6: Final answer
    x = 14,404.20

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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.