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Finding the Fourth Proportional to 55,117.72, 82,676.58 and 17,681.68

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Solution

The fourth proportional to 55,117.72, 82,676.58 and 17,681.68 is: 26,522.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,117.72 : 82,676.58 = 17,681.68 : x
  2. Step 2: Convert to fraction form
    55,117.72/82,676.58 = 17,681.68/x
  3. Step 3: Cross multiply
    55,117.72x = 82,676.58 × 17,681.68
  4. Step 4: Simplify right side
    55,117.72x = 1,461,860,831.05
  5. Step 5: Solve for x
    x = 1,461,860,831.05/55,117.72
  6. Step 6: Final answer
    x = 26,522.52

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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.