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Finding the Fourth Proportional to 63,312.30, 94,985.73 and 21,199.32

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Solution

The fourth proportional to 63,312.30, 94,985.73 and 21,199.32 is: 31,804.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,312.30 : 94,985.73 = 21,199.32 : x
  2. Step 2: Convert to fraction form
    63,312.30/94,985.73 = 21,199.32/x
  3. Step 3: Cross multiply
    63,312.30x = 94,985.73 × 21,199.32
  4. Step 4: Simplify right side
    63,312.30x = 2,013,632,885.70
  5. Step 5: Solve for x
    x = 2,013,632,885.70/63,312.30
  6. Step 6: Final answer
    x = 31,804.77

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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.