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Finding the Fourth Proportional to 61,268.40, 85,892.40 and 61,268.40

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Solution

The fourth proportional to 61,268.40, 85,892.40 and 61,268.40 is: 85,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,268.40 : 85,892.40 = 61,268.40 : x
  2. Step 2: Convert to fraction form
    61,268.40/85,892.40 = 61,268.40/x
  3. Step 3: Cross multiply
    61,268.40x = 85,892.40 × 61,268.40
  4. Step 4: Simplify right side
    61,268.40x = 5,262,489,920.16
  5. Step 5: Solve for x
    x = 5,262,489,920.16/61,268.40
  6. Step 6: Final answer
    x = 85,892.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.