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Finding the Fourth Proportional to 66,582.03, 99,871.48 and 31,005.01

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Solution

The fourth proportional to 66,582.03, 99,871.48 and 31,005.01 is: 46,506.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,582.03 : 99,871.48 = 31,005.01 : x
  2. Step 2: Convert to fraction form
    66,582.03/99,871.48 = 31,005.01/x
  3. Step 3: Cross multiply
    66,582.03x = 99,871.48 × 31,005.01
  4. Step 4: Simplify right side
    66,582.03x = 3,096,516,399.71
  5. Step 5: Solve for x
    x = 3,096,516,399.71/66,582.03
  6. Step 6: Final answer
    x = 46,506.79

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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.