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Finding the Fourth Proportional to 56,695.72, 78,223.86 and 36,564.16

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Solution

The fourth proportional to 56,695.72, 78,223.86 and 36,564.16 is: 50,448.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,695.72 : 78,223.86 = 36,564.16 : x
  2. Step 2: Convert to fraction form
    56,695.72/78,223.86 = 36,564.16/x
  3. Step 3: Cross multiply
    56,695.72x = 78,223.86 × 36,564.16
  4. Step 4: Simplify right side
    56,695.72x = 2,860,189,732.86
  5. Step 5: Solve for x
    x = 2,860,189,732.86/56,695.72
  6. Step 6: Final answer
    x = 50,448.07

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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.