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Finding the Fourth Proportional to 52,988.76, 79,483.40 and 13,545.88

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Solution

The fourth proportional to 52,988.76, 79,483.40 and 13,545.88 is: 20,318.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,988.76 : 79,483.40 = 13,545.88 : x
  2. Step 2: Convert to fraction form
    52,988.76/79,483.40 = 13,545.88/x
  3. Step 3: Cross multiply
    52,988.76x = 79,483.40 × 13,545.88
  4. Step 4: Simplify right side
    52,988.76x = 1,076,672,598.39
  5. Step 5: Solve for x
    x = 1,076,672,598.39/52,988.76
  6. Step 6: Final answer
    x = 20,318.89

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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.