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Finding the Fourth Proportional to 35,602.76, 49,129.84 and 19,686.16

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Solution

The fourth proportional to 35,602.76, 49,129.84 and 19,686.16 is: 27,165.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,602.76 : 49,129.84 = 19,686.16 : x
  2. Step 2: Convert to fraction form
    35,602.76/49,129.84 = 19,686.16/x
  3. Step 3: Cross multiply
    35,602.76x = 49,129.84 × 19,686.16
  4. Step 4: Simplify right side
    35,602.76x = 967,177,891.01
  5. Step 5: Solve for x
    x = 967,177,891.01/35,602.76
  6. Step 6: Final answer
    x = 27,165.81

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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.