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Finding the Fourth Proportional to 70,003.28, 105,005.30 and 17,412.77

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Solution

The fourth proportional to 70,003.28, 105,005.30 and 17,412.77 is: 26,119.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,003.28 : 105,005.30 = 17,412.77 : x
  2. Step 2: Convert to fraction form
    70,003.28/105,005.30 = 17,412.77/x
  3. Step 3: Cross multiply
    70,003.28x = 105,005.30 × 17,412.77
  4. Step 4: Simplify right side
    70,003.28x = 1,828,432,525.59
  5. Step 5: Solve for x
    x = 1,828,432,525.59/70,003.28
  6. Step 6: Final answer
    x = 26,119.24

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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.