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Finding the Fourth Proportional to 18,710.52, 25,823.00 and 13,041.60

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Solution

The fourth proportional to 18,710.52, 25,823.00 and 13,041.60 is: 17,999.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,710.52 : 25,823.00 = 13,041.60 : x
  2. Step 2: Convert to fraction form
    18,710.52/25,823.00 = 13,041.60/x
  3. Step 3: Cross multiply
    18,710.52x = 25,823.00 × 13,041.60
  4. Step 4: Simplify right side
    18,710.52x = 336,773,171.59
  5. Step 5: Solve for x
    x = 336,773,171.59/18,710.52
  6. Step 6: Final answer
    x = 17,999.13

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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.