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Finding the Fourth Proportional to 30,017.76, 45,026.64 and 11,302.00

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Solution

The fourth proportional to 30,017.76, 45,026.64 and 11,302.00 is: 16,952.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,017.76 : 45,026.64 = 11,302.00 : x
  2. Step 2: Convert to fraction form
    30,017.76/45,026.64 = 11,302.00/x
  3. Step 3: Cross multiply
    30,017.76x = 45,026.64 × 11,302.00
  4. Step 4: Simplify right side
    30,017.76x = 508,890,874.27
  5. Step 5: Solve for x
    x = 508,890,874.27/30,017.76
  6. Step 6: Final answer
    x = 16,952.99

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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.