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Finding the Fourth Proportional to 8,605.24, 11,875.08 and 4,828.42

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Solution

The fourth proportional to 8,605.24, 11,875.08 and 4,828.42 is: 6,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.24 : 11,875.08 = 4,828.42 : x
  2. Step 2: Convert to fraction form
    8,605.24/11,875.08 = 4,828.42/x
  3. Step 3: Cross multiply
    8,605.24x = 11,875.08 × 4,828.42
  4. Step 4: Simplify right side
    8,605.24x = 57,337,873.77
  5. Step 5: Solve for x
    x = 57,337,873.77/8,605.24
  6. Step 6: Final answer
    x = 6,663.13

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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.