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Finding the Fourth Proportional to 75,010.40, 112,499.40 and 32,890.40

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Solution

The fourth proportional to 75,010.40, 112,499.40 and 32,890.40 is: 49,328.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,010.40 : 112,499.40 = 32,890.40 : x
  2. Step 2: Convert to fraction form
    75,010.40/112,499.40 = 32,890.40/x
  3. Step 3: Cross multiply
    75,010.40x = 112,499.40 × 32,890.40
  4. Step 4: Simplify right side
    75,010.40x = 3,700,150,265.76
  5. Step 5: Solve for x
    x = 3,700,150,265.76/75,010.40
  6. Step 6: Final answer
    x = 49,328.50

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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.