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Finding the Fourth Proportional to 63,380.71, 87,465.40 and 35,086.40

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Solution

The fourth proportional to 63,380.71, 87,465.40 and 35,086.40 is: 48,419.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,380.71 : 87,465.40 = 35,086.40 : x
  2. Step 2: Convert to fraction form
    63,380.71/87,465.40 = 35,086.40/x
  3. Step 3: Cross multiply
    63,380.71x = 87,465.40 × 35,086.40
  4. Step 4: Simplify right side
    63,380.71x = 3,068,845,573.23
  5. Step 5: Solve for x
    x = 3,068,845,573.23/63,380.71
  6. Step 6: Final answer
    x = 48,419.24

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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.