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Finding the Fourth Proportional to 30,476.53, 42,055.67 and 17,047.67

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Solution

The fourth proportional to 30,476.53, 42,055.67 and 17,047.67 is: 23,524.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,476.53 : 42,055.67 = 17,047.67 : x
  2. Step 2: Convert to fraction form
    30,476.53/42,055.67 = 17,047.67/x
  3. Step 3: Cross multiply
    30,476.53x = 42,055.67 × 17,047.67
  4. Step 4: Simplify right side
    30,476.53x = 716,950,944.21
  5. Step 5: Solve for x
    x = 716,950,944.21/30,476.53
  6. Step 6: Final answer
    x = 23,524.69

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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.