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Finding the Fourth Proportional to 43,461.86, 64,866.94 and 40,624.30

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Solution

The fourth proportional to 43,461.86, 64,866.94 and 40,624.30 is: 60,631.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,461.86 : 64,866.94 = 40,624.30 : x
  2. Step 2: Convert to fraction form
    43,461.86/64,866.94 = 40,624.30/x
  3. Step 3: Cross multiply
    43,461.86x = 64,866.94 × 40,624.30
  4. Step 4: Simplify right side
    43,461.86x = 2,635,174,030.64
  5. Step 5: Solve for x
    x = 2,635,174,030.64/43,461.86
  6. Step 6: Final answer
    x = 60,631.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.