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Finding the Fourth Proportional to 51,656.68, 77,484.66 and 14,720.68

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Solution

The fourth proportional to 51,656.68, 77,484.66 and 14,720.68 is: 22,080.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,656.68 : 77,484.66 = 14,720.68 : x
  2. Step 2: Convert to fraction form
    51,656.68/77,484.66 = 14,720.68/x
  3. Step 3: Cross multiply
    51,656.68x = 77,484.66 × 14,720.68
  4. Step 4: Simplify right side
    51,656.68x = 1,140,626,884.77
  5. Step 5: Solve for x
    x = 1,140,626,884.77/51,656.68
  6. Step 6: Final answer
    x = 22,080.92

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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.