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Finding the Fourth Proportional to 43,673.40, 65,412.90 and 35,897.40

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Solution

The fourth proportional to 43,673.40, 65,412.90 and 35,897.40 is: 53,766.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,673.40 : 65,412.90 = 35,897.40 : x
  2. Step 2: Convert to fraction form
    43,673.40/65,412.90 = 35,897.40/x
  3. Step 3: Cross multiply
    43,673.40x = 65,412.90 × 35,897.40
  4. Step 4: Simplify right side
    43,673.40x = 2,348,153,036.46
  5. Step 5: Solve for x
    x = 2,348,153,036.46/43,673.40
  6. Step 6: Final answer
    x = 53,766.21

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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.