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Finding the Fourth Proportional to 15,707.48, 23,565.09 and 7,813.74

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Solution

The fourth proportional to 15,707.48, 23,565.09 and 7,813.74 is: 11,722.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,707.48 : 23,565.09 = 7,813.74 : x
  2. Step 2: Convert to fraction form
    15,707.48/23,565.09 = 7,813.74/x
  3. Step 3: Cross multiply
    15,707.48x = 23,565.09 × 7,813.74
  4. Step 4: Simplify right side
    15,707.48x = 184,131,486.34
  5. Step 5: Solve for x
    x = 184,131,486.34/15,707.48
  6. Step 6: Final answer
    x = 11,722.54

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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.