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Finding the Fourth Proportional to 61,113.73, 91,670.67 and 16,740.87

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Solution

The fourth proportional to 61,113.73, 91,670.67 and 16,740.87 is: 25,111.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,113.73 : 91,670.67 = 16,740.87 : x
  2. Step 2: Convert to fraction form
    61,113.73/91,670.67 = 16,740.87/x
  3. Step 3: Cross multiply
    61,113.73x = 91,670.67 × 16,740.87
  4. Step 4: Simplify right side
    61,113.73x = 1,534,646,269.08
  5. Step 5: Solve for x
    x = 1,534,646,269.08/61,113.73
  6. Step 6: Final answer
    x = 25,111.32

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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.