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Finding the Fourth Proportional to 18,047.61, 24,904.99 and 9,980.74

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Solution

The fourth proportional to 18,047.61, 24,904.99 and 9,980.74 is: 13,773.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,047.61 : 24,904.99 = 9,980.74 : x
  2. Step 2: Convert to fraction form
    18,047.61/24,904.99 = 9,980.74/x
  3. Step 3: Cross multiply
    18,047.61x = 24,904.99 × 9,980.74
  4. Step 4: Simplify right side
    18,047.61x = 248,570,273.50
  5. Step 5: Solve for x
    x = 248,570,273.50/18,047.61
  6. Step 6: Final answer
    x = 13,773.03

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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.