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Finding the Fourth Proportional to 27,312.48, 40,936.32 and 11,697.12

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Solution

The fourth proportional to 27,312.48, 40,936.32 and 11,697.12 is: 17,531.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,312.48 : 40,936.32 = 11,697.12 : x
  2. Step 2: Convert to fraction form
    27,312.48/40,936.32 = 11,697.12/x
  3. Step 3: Cross multiply
    27,312.48x = 40,936.32 × 11,697.12
  4. Step 4: Simplify right side
    27,312.48x = 478,837,047.40
  5. Step 5: Solve for x
    x = 478,837,047.40/27,312.48
  6. Step 6: Final answer
    x = 17,531.80

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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.