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Finding the Fourth Proportional to 30,041.46, 45,070.43 and 21,592.12

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Solution

The fourth proportional to 30,041.46, 45,070.43 and 21,592.12 is: 32,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,041.46 : 45,070.43 = 21,592.12 : x
  2. Step 2: Convert to fraction form
    30,041.46/45,070.43 = 21,592.12/x
  3. Step 3: Cross multiply
    30,041.46x = 45,070.43 × 21,592.12
  4. Step 4: Simplify right side
    30,041.46x = 973,166,133.01
  5. Step 5: Solve for x
    x = 973,166,133.01/30,041.46
  6. Step 6: Final answer
    x = 32,394.10

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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.