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Finding the Fourth Proportional to 82,899.90, 114,398.34 and 47,089.80

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Solution

The fourth proportional to 82,899.90, 114,398.34 and 47,089.80 is: 64,981.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,899.90 : 114,398.34 = 47,089.80 : x
  2. Step 2: Convert to fraction form
    82,899.90/114,398.34 = 47,089.80/x
  3. Step 3: Cross multiply
    82,899.90x = 114,398.34 × 47,089.80
  4. Step 4: Simplify right side
    82,899.90x = 5,386,994,950.93
  5. Step 5: Solve for x
    x = 5,386,994,950.93/82,899.90
  6. Step 6: Final answer
    x = 64,981.92

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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.