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Finding the Fourth Proportional to 56,160, 84,244.86 and 14,607

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Solution

The fourth proportional to 56,160, 84,244.86 and 14,607 is: 21,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,160 : 84,244.86 = 14,607 : x
  2. Step 2: Convert to fraction form
    56,160/84,244.86 = 14,607/x
  3. Step 3: Cross multiply
    56,160x = 84,244.86 × 14,607
  4. Step 4: Simplify right side
    56,160x = 1,230,564,670.02
  5. Step 5: Solve for x
    x = 1,230,564,670.02/56,160
  6. Step 6: Final answer
    x = 21,911.76

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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.