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Finding the Fourth Proportional to 75,706.52, 104,362.98 and 48,479.72

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Solution

The fourth proportional to 75,706.52, 104,362.98 and 48,479.72 is: 66,830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,706.52 : 104,362.98 = 48,479.72 : x
  2. Step 2: Convert to fraction form
    75,706.52/104,362.98 = 48,479.72/x
  3. Step 3: Cross multiply
    75,706.52x = 104,362.98 × 48,479.72
  4. Step 4: Simplify right side
    75,706.52x = 5,059,488,048.77
  5. Step 5: Solve for x
    x = 5,059,488,048.77/75,706.52
  6. Step 6: Final answer
    x = 66,830.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.