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Finding the Fourth Proportional to 30,488.76, 42,074.82 and 17,060.76

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Solution

The fourth proportional to 30,488.76, 42,074.82 and 17,060.76 is: 23,544.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,488.76 : 42,074.82 = 17,060.76 : x
  2. Step 2: Convert to fraction form
    30,488.76/42,074.82 = 17,060.76/x
  3. Step 3: Cross multiply
    30,488.76x = 42,074.82 × 17,060.76
  4. Step 4: Simplify right side
    30,488.76x = 717,828,406.06
  5. Step 5: Solve for x
    x = 717,828,406.06/30,488.76
  6. Step 6: Final answer
    x = 23,544.03

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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.