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Finding the Fourth Proportional to 64,479.46, 96,582.83 and 40,774.77

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Solution

The fourth proportional to 64,479.46, 96,582.83 and 40,774.77 is: 61,075.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,479.46 : 96,582.83 = 40,774.77 : x
  2. Step 2: Convert to fraction form
    64,479.46/96,582.83 = 40,774.77/x
  3. Step 3: Cross multiply
    64,479.46x = 96,582.83 × 40,774.77
  4. Step 4: Simplify right side
    64,479.46x = 3,938,142,605.06
  5. Step 5: Solve for x
    x = 3,938,142,605.06/64,479.46
  6. Step 6: Final answer
    x = 61,075.93

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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.