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Finding the Fourth Proportional to 64,950.98, 89,622.74 and 39,444.08

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Solution

The fourth proportional to 64,950.98, 89,622.74 and 39,444.08 is: 54,426.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,950.98 : 89,622.74 = 39,444.08 : x
  2. Step 2: Convert to fraction form
    64,950.98/89,622.74 = 39,444.08/x
  3. Step 3: Cross multiply
    64,950.98x = 89,622.74 × 39,444.08
  4. Step 4: Simplify right side
    64,950.98x = 3,535,086,526.38
  5. Step 5: Solve for x
    x = 3,535,086,526.38/64,950.98
  6. Step 6: Final answer
    x = 54,426.99

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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.