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Finding the Fourth Proportional to 34,492.80, 47,577.60 and 28,195.20

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Solution

The fourth proportional to 34,492.80, 47,577.60 and 28,195.20 is: 38,891.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,492.80 : 47,577.60 = 28,195.20 : x
  2. Step 2: Convert to fraction form
    34,492.80/47,577.60 = 28,195.20/x
  3. Step 3: Cross multiply
    34,492.80x = 47,577.60 × 28,195.20
  4. Step 4: Simplify right side
    34,492.80x = 1,341,459,947.52
  5. Step 5: Solve for x
    x = 1,341,459,947.52/34,492.80
  6. Step 6: Final answer
    x = 38,891.01

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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.