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Finding the Fourth Proportional to 64,308.75, 88,746.12 and 36,015.09

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Solution

The fourth proportional to 64,308.75, 88,746.12 and 36,015.09 is: 49,700.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,308.75 : 88,746.12 = 36,015.09 : x
  2. Step 2: Convert to fraction form
    64,308.75/88,746.12 = 36,015.09/x
  3. Step 3: Cross multiply
    64,308.75x = 88,746.12 × 36,015.09
  4. Step 4: Simplify right side
    64,308.75x = 3,196,199,498.95
  5. Step 5: Solve for x
    x = 3,196,199,498.95/64,308.75
  6. Step 6: Final answer
    x = 49,700.85

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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.