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Finding the Fourth Proportional to 71,453.68, 98,603.73 and 39,624.93

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Solution

The fourth proportional to 71,453.68, 98,603.73 and 39,624.93 is: 54,681.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,453.68 : 98,603.73 = 39,624.93 : x
  2. Step 2: Convert to fraction form
    71,453.68/98,603.73 = 39,624.93/x
  3. Step 3: Cross multiply
    71,453.68x = 98,603.73 × 39,624.93
  4. Step 4: Simplify right side
    71,453.68x = 3,907,165,898.99
  5. Step 5: Solve for x
    x = 3,907,165,898.99/71,453.68
  6. Step 6: Final answer
    x = 54,681.10

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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.