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Finding the Fourth Proportional to 52,428, 72,353.52 and 30,073.44

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Solution

The fourth proportional to 52,428, 72,353.52 and 30,073.44 is: 41,503.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,428 : 72,353.52 = 30,073.44 : x
  2. Step 2: Convert to fraction form
    52,428/72,353.52 = 30,073.44/x
  3. Step 3: Cross multiply
    52,428x = 72,353.52 × 30,073.44
  4. Step 4: Simplify right side
    52,428x = 2,175,919,242.51
  5. Step 5: Solve for x
    x = 2,175,919,242.51/52,428
  6. Step 6: Final answer
    x = 41,503.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.