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Finding the Fourth Proportional to 27,328.55, 37,715.00 and 16,720.20

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Solution

The fourth proportional to 27,328.55, 37,715.00 and 16,720.20 is: 23,074.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,328.55 : 37,715.00 = 16,720.20 : x
  2. Step 2: Convert to fraction form
    27,328.55/37,715.00 = 16,720.20/x
  3. Step 3: Cross multiply
    27,328.55x = 37,715.00 × 16,720.20
  4. Step 4: Simplify right side
    27,328.55x = 630,602,259.40
  5. Step 5: Solve for x
    x = 630,602,259.40/27,328.55
  6. Step 6: Final answer
    x = 23,074.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.