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Finding the Fourth Proportional to 18,547.84, 27,656.28 and 16,487.20

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Solution

The fourth proportional to 18,547.84, 27,656.28 and 16,487.20 is: 24,583.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,547.84 : 27,656.28 = 16,487.20 : x
  2. Step 2: Convert to fraction form
    18,547.84/27,656.28 = 16,487.20/x
  3. Step 3: Cross multiply
    18,547.84x = 27,656.28 × 16,487.20
  4. Step 4: Simplify right side
    18,547.84x = 455,974,619.62
  5. Step 5: Solve for x
    x = 455,974,619.62/18,547.84
  6. Step 6: Final answer
    x = 24,583.70

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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.