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Finding the Fourth Proportional to 40,897.90, 61,356.04 and 14,245.12

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Solution

The fourth proportional to 40,897.90, 61,356.04 and 14,245.12 is: 21,370.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,897.90 : 61,356.04 = 14,245.12 : x
  2. Step 2: Convert to fraction form
    40,897.90/61,356.04 = 14,245.12/x
  3. Step 3: Cross multiply
    40,897.90x = 61,356.04 × 14,245.12
  4. Step 4: Simplify right side
    40,897.90x = 874,024,152.52
  5. Step 5: Solve for x
    x = 874,024,152.52/40,897.90
  6. Step 6: Final answer
    x = 21,370.88

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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.