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Finding the Fourth Proportional to 64,158.50, 96,173.76 and 30,869.12

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Solution

The fourth proportional to 64,158.50, 96,173.76 and 30,869.12 is: 46,272.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,158.50 : 96,173.76 = 30,869.12 : x
  2. Step 2: Convert to fraction form
    64,158.50/96,173.76 = 30,869.12/x
  3. Step 3: Cross multiply
    64,158.50x = 96,173.76 × 30,869.12
  4. Step 4: Simplify right side
    64,158.50x = 2,968,799,338.29
  5. Step 5: Solve for x
    x = 2,968,799,338.29/64,158.50
  6. Step 6: Final answer
    x = 46,272.89

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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.