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Finding the Fourth Proportional to 58,690.16, 88,042.10 and 21,267.86

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Solution

The fourth proportional to 58,690.16, 88,042.10 and 21,267.86 is: 31,904.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,690.16 : 88,042.10 = 21,267.86 : x
  2. Step 2: Convert to fraction form
    58,690.16/88,042.10 = 21,267.86/x
  3. Step 3: Cross multiply
    58,690.16x = 88,042.10 × 21,267.86
  4. Step 4: Simplify right side
    58,690.16x = 1,872,467,056.91
  5. Step 5: Solve for x
    x = 1,872,467,056.91/58,690.16
  6. Step 6: Final answer
    x = 31,904.28

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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.