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Finding the Fourth Proportional to 52,497.48, 78,723.13 and 19,208.91

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Solution

The fourth proportional to 52,497.48, 78,723.13 and 19,208.91 is: 28,804.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,497.48 : 78,723.13 = 19,208.91 : x
  2. Step 2: Convert to fraction form
    52,497.48/78,723.13 = 19,208.91/x
  3. Step 3: Cross multiply
    52,497.48x = 78,723.13 × 19,208.91
  4. Step 4: Simplify right side
    52,497.48x = 1,512,185,519.09
  5. Step 5: Solve for x
    x = 1,512,185,519.09/52,497.48
  6. Step 6: Final answer
    x = 28,804.92

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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.