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Finding the Fourth Proportional to 66,443.90, 99,531.45 and 41,407.10

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Solution

The fourth proportional to 66,443.90, 99,531.45 and 41,407.10 is: 62,026.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,443.90 : 99,531.45 = 41,407.10 : x
  2. Step 2: Convert to fraction form
    66,443.90/99,531.45 = 41,407.10/x
  3. Step 3: Cross multiply
    66,443.90x = 99,531.45 × 41,407.10
  4. Step 4: Simplify right side
    66,443.90x = 4,121,308,703.30
  5. Step 5: Solve for x
    x = 4,121,308,703.30/66,443.90
  6. Step 6: Final answer
    x = 62,026.89

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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.