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Finding the Fourth Proportional to 15,605.55, 23,403.06 and 4,508.55

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Solution

The fourth proportional to 15,605.55, 23,403.06 and 4,508.55 is: 6,761.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,605.55 : 23,403.06 = 4,508.55 : x
  2. Step 2: Convert to fraction form
    15,605.55/23,403.06 = 4,508.55/x
  3. Step 3: Cross multiply
    15,605.55x = 23,403.06 × 4,508.55
  4. Step 4: Simplify right side
    15,605.55x = 105,513,866.16
  5. Step 5: Solve for x
    x = 105,513,866.16/15,605.55
  6. Step 6: Final answer
    x = 6,761.30

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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.