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Finding the Fourth Proportional to 71,697.16, 98,950.50 and 43,402.60

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Solution

The fourth proportional to 71,697.16, 98,950.50 and 43,402.60 is: 59,900.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,697.16 : 98,950.50 = 43,402.60 : x
  2. Step 2: Convert to fraction form
    71,697.16/98,950.50 = 43,402.60/x
  3. Step 3: Cross multiply
    71,697.16x = 98,950.50 × 43,402.60
  4. Step 4: Simplify right side
    71,697.16x = 4,294,708,971.30
  5. Step 5: Solve for x
    x = 4,294,708,971.30/71,697.16
  6. Step 6: Final answer
    x = 59,900.68

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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.