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Finding the Fourth Proportional to 55,673.69, 83,509.35 and 13,553.99

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Solution

The fourth proportional to 55,673.69, 83,509.35 and 13,553.99 is: 20,330.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,673.69 : 83,509.35 = 13,553.99 : x
  2. Step 2: Convert to fraction form
    55,673.69/83,509.35 = 13,553.99/x
  3. Step 3: Cross multiply
    55,673.69x = 83,509.35 × 13,553.99
  4. Step 4: Simplify right side
    55,673.69x = 1,131,884,894.81
  5. Step 5: Solve for x
    x = 1,131,884,894.81/55,673.69
  6. Step 6: Final answer
    x = 20,330.70

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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.