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Finding the Fourth Proportional to 43,006.70, 64,400.70 and 41,038.40

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Solution

The fourth proportional to 43,006.70, 64,400.70 and 41,038.40 is: 61,453.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,006.70 : 64,400.70 = 41,038.40 : x
  2. Step 2: Convert to fraction form
    43,006.70/64,400.70 = 41,038.40/x
  3. Step 3: Cross multiply
    43,006.70x = 64,400.70 × 41,038.40
  4. Step 4: Simplify right side
    43,006.70x = 2,642,901,686.88
  5. Step 5: Solve for x
    x = 2,642,901,686.88/43,006.70
  6. Step 6: Final answer
    x = 61,453.25

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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.