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Finding the Fourth Proportional to 66,509.48, 99,605.31 and 36,853.76

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Solution

The fourth proportional to 66,509.48, 99,605.31 and 36,853.76 is: 55,192.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,509.48 : 99,605.31 = 36,853.76 : x
  2. Step 2: Convert to fraction form
    66,509.48/99,605.31 = 36,853.76/x
  3. Step 3: Cross multiply
    66,509.48x = 99,605.31 × 36,853.76
  4. Step 4: Simplify right side
    66,509.48x = 3,670,830,189.47
  5. Step 5: Solve for x
    x = 3,670,830,189.47/66,509.48
  6. Step 6: Final answer
    x = 55,192.59

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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.