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Finding the Fourth Proportional to 42,446.60, 63,669.90 and 35,059.40

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Solution

The fourth proportional to 42,446.60, 63,669.90 and 35,059.40 is: 52,589.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,446.60 : 63,669.90 = 35,059.40 : x
  2. Step 2: Convert to fraction form
    42,446.60/63,669.90 = 35,059.40/x
  3. Step 3: Cross multiply
    42,446.60x = 63,669.90 × 35,059.40
  4. Step 4: Simplify right side
    42,446.60x = 2,232,228,492.06
  5. Step 5: Solve for x
    x = 2,232,228,492.06/42,446.60
  6. Step 6: Final answer
    x = 52,589.10

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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.