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Finding the Fourth Proportional to 56,068.89, 84,117.51 and 18,629.16

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Solution

The fourth proportional to 56,068.89, 84,117.51 and 18,629.16 is: 27,948.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,068.89 : 84,117.51 = 18,629.16 : x
  2. Step 2: Convert to fraction form
    56,068.89/84,117.51 = 18,629.16/x
  3. Step 3: Cross multiply
    56,068.89x = 84,117.51 × 18,629.16
  4. Step 4: Simplify right side
    56,068.89x = 1,567,038,552.59
  5. Step 5: Solve for x
    x = 1,567,038,552.59/56,068.89
  6. Step 6: Final answer
    x = 27,948.45

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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.