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Finding the Fourth Proportional to 88,690.95, 132,920.90 and 36,038.88

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Solution

The fourth proportional to 88,690.95, 132,920.90 and 36,038.88 is: 54,011.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,690.95 : 132,920.90 = 36,038.88 : x
  2. Step 2: Convert to fraction form
    88,690.95/132,920.90 = 36,038.88/x
  3. Step 3: Cross multiply
    88,690.95x = 132,920.90 × 36,038.88
  4. Step 4: Simplify right side
    88,690.95x = 4,790,320,364.59
  5. Step 5: Solve for x
    x = 4,790,320,364.59/88,690.95
  6. Step 6: Final answer
    x = 54,011.38

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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.