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Finding the Fourth Proportional to 18,398.84, 27,598.44 and 4,547.84

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Solution

The fourth proportional to 18,398.84, 27,598.44 and 4,547.84 is: 6,821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.84 : 27,598.44 = 4,547.84 : x
  2. Step 2: Convert to fraction form
    18,398.84/27,598.44 = 4,547.84/x
  3. Step 3: Cross multiply
    18,398.84x = 27,598.44 × 4,547.84
  4. Step 4: Simplify right side
    18,398.84x = 125,513,289.37
  5. Step 5: Solve for x
    x = 125,513,289.37/18,398.84
  6. Step 6: Final answer
    x = 6,821.80

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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.