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Finding the Fourth Proportional to 30,894.88, 42,602.94 and 26,433.40

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Solution

The fourth proportional to 30,894.88, 42,602.94 and 26,433.40 is: 36,450.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,894.88 : 42,602.94 = 26,433.40 : x
  2. Step 2: Convert to fraction form
    30,894.88/42,602.94 = 26,433.40/x
  3. Step 3: Cross multiply
    30,894.88x = 42,602.94 × 26,433.40
  4. Step 4: Simplify right side
    30,894.88x = 1,126,140,554.20
  5. Step 5: Solve for x
    x = 1,126,140,554.20/30,894.88
  6. Step 6: Final answer
    x = 36,450.72

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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.