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Finding the Fourth Proportional to 61,693.92, 92,526.30 and 28,393.20

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Solution

The fourth proportional to 61,693.92, 92,526.30 and 28,393.20 is: 42,583.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,693.92 : 92,526.30 = 28,393.20 : x
  2. Step 2: Convert to fraction form
    61,693.92/92,526.30 = 28,393.20/x
  3. Step 3: Cross multiply
    61,693.92x = 92,526.30 × 28,393.20
  4. Step 4: Simplify right side
    61,693.92x = 2,627,117,741.16
  5. Step 5: Solve for x
    x = 2,627,117,741.16/61,693.92
  6. Step 6: Final answer
    x = 42,583.09

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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.