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Finding the Fourth Proportional to 25,291.80, 37,937.70 and 23,218.20

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Solution

The fourth proportional to 25,291.80, 37,937.70 and 23,218.20 is: 34,827.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,291.80 : 37,937.70 = 23,218.20 : x
  2. Step 2: Convert to fraction form
    25,291.80/37,937.70 = 23,218.20/x
  3. Step 3: Cross multiply
    25,291.80x = 37,937.70 × 23,218.20
  4. Step 4: Simplify right side
    25,291.80x = 880,845,106.14
  5. Step 5: Solve for x
    x = 880,845,106.14/25,291.80
  6. Step 6: Final answer
    x = 34,827.30

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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.