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Finding the Fourth Proportional to 15,041.16, 20,748.76 and 9,726.75

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Solution

The fourth proportional to 15,041.16, 20,748.76 and 9,726.75 is: 13,417.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,041.16 : 20,748.76 = 9,726.75 : x
  2. Step 2: Convert to fraction form
    15,041.16/20,748.76 = 9,726.75/x
  3. Step 3: Cross multiply
    15,041.16x = 20,748.76 × 9,726.75
  4. Step 4: Simplify right side
    15,041.16x = 201,817,977.01
  5. Step 5: Solve for x
    x = 201,817,977.01/15,041.16
  6. Step 6: Final answer
    x = 13,417.71

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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.