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Finding the Fourth Proportional to 19,383.95, 29,076.84 and 6,904.08

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Solution

The fourth proportional to 19,383.95, 29,076.84 and 6,904.08 is: 10,356.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,383.95 : 29,076.84 = 6,904.08 : x
  2. Step 2: Convert to fraction form
    19,383.95/29,076.84 = 6,904.08/x
  3. Step 3: Cross multiply
    19,383.95x = 29,076.84 × 6,904.08
  4. Step 4: Simplify right side
    19,383.95x = 200,748,829.51
  5. Step 5: Solve for x
    x = 200,748,829.51/19,383.95
  6. Step 6: Final answer
    x = 10,356.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.