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Finding the Fourth Proportional to 66,365.80, 99,663.90 and 35,261.80

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Solution

The fourth proportional to 66,365.80, 99,663.90 and 35,261.80 is: 52,953.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,365.80 : 99,663.90 = 35,261.80 : x
  2. Step 2: Convert to fraction form
    66,365.80/99,663.90 = 35,261.80/x
  3. Step 3: Cross multiply
    66,365.80x = 99,663.90 × 35,261.80
  4. Step 4: Simplify right side
    66,365.80x = 3,514,328,509.02
  5. Step 5: Solve for x
    x = 3,514,328,509.02/66,365.80
  6. Step 6: Final answer
    x = 52,953.91

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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.