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Finding the Fourth Proportional to 55,605.72, 83,417.82 and 18,154.92

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Solution

The fourth proportional to 55,605.72, 83,417.82 and 18,154.92 is: 27,235.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,605.72 : 83,417.82 = 18,154.92 : x
  2. Step 2: Convert to fraction form
    55,605.72/83,417.82 = 18,154.92/x
  3. Step 3: Cross multiply
    55,605.72x = 83,417.82 × 18,154.92
  4. Step 4: Simplify right side
    55,605.72x = 1,514,443,848.67
  5. Step 5: Solve for x
    x = 1,514,443,848.67/55,605.72
  6. Step 6: Final answer
    x = 27,235.40

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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.