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Finding the Fourth Proportional to 64,518.88, 96,669.09 and 39,506.69

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Solution

The fourth proportional to 64,518.88, 96,669.09 and 39,506.69 is: 59,193.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,518.88 : 96,669.09 = 39,506.69 : x
  2. Step 2: Convert to fraction form
    64,518.88/96,669.09 = 39,506.69/x
  3. Step 3: Cross multiply
    64,518.88x = 96,669.09 × 39,506.69
  4. Step 4: Simplify right side
    64,518.88x = 3,819,075,771.21
  5. Step 5: Solve for x
    x = 3,819,075,771.21/64,518.88
  6. Step 6: Final answer
    x = 59,193.15

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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.