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Finding the Fourth Proportional to 61,362.40, 92,000.40 and 28,098.40

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Solution

The fourth proportional to 61,362.40, 92,000.40 and 28,098.40 is: 42,127.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,362.40 : 92,000.40 = 28,098.40 : x
  2. Step 2: Convert to fraction form
    61,362.40/92,000.40 = 28,098.40/x
  3. Step 3: Cross multiply
    61,362.40x = 92,000.40 × 28,098.40
  4. Step 4: Simplify right side
    61,362.40x = 2,585,064,039.36
  5. Step 5: Solve for x
    x = 2,585,064,039.36/61,362.40
  6. Step 6: Final answer
    x = 42,127.82

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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.