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Finding the Fourth Proportional to 18,357.13, 25,332.84 and 9,973.63

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Solution

The fourth proportional to 18,357.13, 25,332.84 and 9,973.63 is: 13,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,357.13 : 25,332.84 = 9,973.63 : x
  2. Step 2: Convert to fraction form
    18,357.13/25,332.84 = 9,973.63/x
  3. Step 3: Cross multiply
    18,357.13x = 25,332.84 × 9,973.63
  4. Step 4: Simplify right side
    18,357.13x = 252,660,196.48
  5. Step 5: Solve for x
    x = 252,660,196.48/18,357.13
  6. Step 6: Final answer
    x = 13,763.60

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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.