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Finding the Fourth Proportional to 61,326.93, 91,990.17 and 16,953.60

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Solution

The fourth proportional to 61,326.93, 91,990.17 and 16,953.60 is: 25,430.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,326.93 : 91,990.17 = 16,953.60 : x
  2. Step 2: Convert to fraction form
    61,326.93/91,990.17 = 16,953.60/x
  3. Step 3: Cross multiply
    61,326.93x = 91,990.17 × 16,953.60
  4. Step 4: Simplify right side
    61,326.93x = 1,559,564,546.11
  5. Step 5: Solve for x
    x = 1,559,564,546.11/61,326.93
  6. Step 6: Final answer
    x = 25,430.34

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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.