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Finding the Fourth Proportional to 70,656.85, 97,511.88 and 40,451.65

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Solution

The fourth proportional to 70,656.85, 97,511.88 and 40,451.65 is: 55,826.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,656.85 : 97,511.88 = 40,451.65 : x
  2. Step 2: Convert to fraction form
    70,656.85/97,511.88 = 40,451.65/x
  3. Step 3: Cross multiply
    70,656.85x = 97,511.88 × 40,451.65
  4. Step 4: Simplify right side
    70,656.85x = 3,944,516,440.60
  5. Step 5: Solve for x
    x = 3,944,516,440.60/70,656.85
  6. Step 6: Final answer
    x = 55,826.38

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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.