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Finding the Fourth Proportional to 35,655.76, 49,193.64 and 20,748.88

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Solution

The fourth proportional to 35,655.76, 49,193.64 and 20,748.88 is: 28,626.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,655.76 : 49,193.64 = 20,748.88 : x
  2. Step 2: Convert to fraction form
    35,655.76/49,193.64 = 20,748.88/x
  3. Step 3: Cross multiply
    35,655.76x = 49,193.64 × 20,748.88
  4. Step 4: Simplify right side
    35,655.76x = 1,020,712,933.12
  5. Step 5: Solve for x
    x = 1,020,712,933.12/35,655.76
  6. Step 6: Final answer
    x = 28,626.87

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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.