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Finding the Fourth Proportional to 66,472.23, 99,751.47 and 39,798.12

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Solution

The fourth proportional to 66,472.23, 99,751.47 and 39,798.12 is: 59,723.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472.23 : 99,751.47 = 39,798.12 : x
  2. Step 2: Convert to fraction form
    66,472.23/99,751.47 = 39,798.12/x
  3. Step 3: Cross multiply
    66,472.23x = 99,751.47 × 39,798.12
  4. Step 4: Simplify right side
    66,472.23x = 3,969,920,973.24
  5. Step 5: Solve for x
    x = 3,969,920,973.24/66,472.23
  6. Step 6: Final answer
    x = 59,723.00

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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.