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Finding the Fourth Proportional to 71,024.60, 106,463.10 and 28,886.60

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Solution

The fourth proportional to 71,024.60, 106,463.10 and 28,886.60 is: 43,299.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,024.60 : 106,463.10 = 28,886.60 : x
  2. Step 2: Convert to fraction form
    71,024.60/106,463.10 = 28,886.60/x
  3. Step 3: Cross multiply
    71,024.60x = 106,463.10 × 28,886.60
  4. Step 4: Simplify right side
    71,024.60x = 3,075,356,984.46
  5. Step 5: Solve for x
    x = 3,075,356,984.46/71,024.60
  6. Step 6: Final answer
    x = 43,299.88

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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.