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Finding the Fourth Proportional to 51,923.60, 77,879.64 and 14,987.60

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Solution

The fourth proportional to 51,923.60, 77,879.64 and 14,987.60 is: 22,479.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,923.60 : 77,879.64 = 14,987.60 : x
  2. Step 2: Convert to fraction form
    51,923.60/77,879.64 = 14,987.60/x
  3. Step 3: Cross multiply
    51,923.60x = 77,879.64 × 14,987.60
  4. Step 4: Simplify right side
    51,923.60x = 1,167,228,892.46
  5. Step 5: Solve for x
    x = 1,167,228,892.46/51,923.60
  6. Step 6: Final answer
    x = 22,479.74

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1.5x scale

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.