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Finding the Fourth Proportional to 74,753.76, 112,131.04 and 19,349.76

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Solution

The fourth proportional to 74,753.76, 112,131.04 and 19,349.76 is: 29,024.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,753.76 : 112,131.04 = 19,349.76 : x
  2. Step 2: Convert to fraction form
    74,753.76/112,131.04 = 19,349.76/x
  3. Step 3: Cross multiply
    74,753.76x = 112,131.04 × 19,349.76
  4. Step 4: Simplify right side
    74,753.76x = 2,169,708,712.55
  5. Step 5: Solve for x
    x = 2,169,708,712.55/74,753.76
  6. Step 6: Final answer
    x = 29,024.74

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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.