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Finding the Fourth Proportional to 46,647.40, 69,971.10 and 26,915.80

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Solution

The fourth proportional to 46,647.40, 69,971.10 and 26,915.80 is: 40,373.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,647.40 : 69,971.10 = 26,915.80 : x
  2. Step 2: Convert to fraction form
    46,647.40/69,971.10 = 26,915.80/x
  3. Step 3: Cross multiply
    46,647.40x = 69,971.10 × 26,915.80
  4. Step 4: Simplify right side
    46,647.40x = 1,883,328,133.38
  5. Step 5: Solve for x
    x = 1,883,328,133.38/46,647.40
  6. Step 6: Final answer
    x = 40,373.70

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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.