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Finding the Fourth Proportional to 30,005.19, 44,913.33 and 20,590.11

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Solution

The fourth proportional to 30,005.19, 44,913.33 and 20,590.11 is: 30,820.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,005.19 : 44,913.33 = 20,590.11 : x
  2. Step 2: Convert to fraction form
    30,005.19/44,913.33 = 20,590.11/x
  3. Step 3: Cross multiply
    30,005.19x = 44,913.33 × 20,590.11
  4. Step 4: Simplify right side
    30,005.19x = 924,770,405.17
  5. Step 5: Solve for x
    x = 924,770,405.17/30,005.19
  6. Step 6: Final answer
    x = 30,820.35

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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.