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Finding the Fourth Proportional to 35,985.51, 49,660.09 and 20,070.99

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Solution

The fourth proportional to 35,985.51, 49,660.09 and 20,070.99 is: 27,698.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,985.51 : 49,660.09 = 20,070.99 : x
  2. Step 2: Convert to fraction form
    35,985.51/49,660.09 = 20,070.99/x
  3. Step 3: Cross multiply
    35,985.51x = 49,660.09 × 20,070.99
  4. Step 4: Simplify right side
    35,985.51x = 996,727,169.79
  5. Step 5: Solve for x
    x = 996,727,169.79/35,985.51
  6. Step 6: Final answer
    x = 27,698.01

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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.