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Finding the Fourth Proportional to 30,088.95, 45,139.49 and 20,733.45

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Solution

The fourth proportional to 30,088.95, 45,139.49 and 20,733.45 is: 31,104.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,088.95 : 45,139.49 = 20,733.45 : x
  2. Step 2: Convert to fraction form
    30,088.95/45,139.49 = 20,733.45/x
  3. Step 3: Cross multiply
    30,088.95x = 45,139.49 × 20,733.45
  4. Step 4: Simplify right side
    30,088.95x = 935,897,358.94
  5. Step 5: Solve for x
    x = 935,897,358.94/30,088.95
  6. Step 6: Final answer
    x = 31,104.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.