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Finding the Fourth Proportional to 35,492.80, 48,981.78 and 19,577.20

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Solution

The fourth proportional to 35,492.80, 48,981.78 and 19,577.20 is: 27,017.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,492.80 : 48,981.78 = 19,577.20 : x
  2. Step 2: Convert to fraction form
    35,492.80/48,981.78 = 19,577.20/x
  3. Step 3: Cross multiply
    35,492.80x = 48,981.78 × 19,577.20
  4. Step 4: Simplify right side
    35,492.80x = 958,926,103.42
  5. Step 5: Solve for x
    x = 958,926,103.42/35,492.80
  6. Step 6: Final answer
    x = 27,017.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.