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Finding the Fourth Proportional to 66,509.01, 91,753.47 and 43,818.89

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Solution

The fourth proportional to 66,509.01, 91,753.47 and 43,818.89 is: 60,450.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,509.01 : 91,753.47 = 43,818.89 : x
  2. Step 2: Convert to fraction form
    66,509.01/91,753.47 = 43,818.89/x
  3. Step 3: Cross multiply
    66,509.01x = 91,753.47 × 43,818.89
  4. Step 4: Simplify right side
    66,509.01x = 4,020,534,750.28
  5. Step 5: Solve for x
    x = 4,020,534,750.28/66,509.01
  6. Step 6: Final answer
    x = 60,450.98

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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.