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Finding the Fourth Proportional to 70,603.75, 105,883.18 and 23,207.90

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Solution

The fourth proportional to 70,603.75, 105,883.18 and 23,207.90 is: 34,804.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,603.75 : 105,883.18 = 23,207.90 : x
  2. Step 2: Convert to fraction form
    70,603.75/105,883.18 = 23,207.90/x
  3. Step 3: Cross multiply
    70,603.75x = 105,883.18 × 23,207.90
  4. Step 4: Simplify right side
    70,603.75x = 2,457,326,253.12
  5. Step 5: Solve for x
    x = 2,457,326,253.12/70,603.75
  6. Step 6: Final answer
    x = 34,804.47

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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.