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Finding the Fourth Proportional to 55,666.84, 83,482.90 and 18,218.56

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Solution

The fourth proportional to 55,666.84, 83,482.90 and 18,218.56 is: 27,322.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,666.84 : 83,482.90 = 18,218.56 : x
  2. Step 2: Convert to fraction form
    55,666.84/83,482.90 = 18,218.56/x
  3. Step 3: Cross multiply
    55,666.84x = 83,482.90 × 18,218.56
  4. Step 4: Simplify right side
    55,666.84x = 1,520,938,222.62
  5. Step 5: Solve for x
    x = 1,520,938,222.62/55,666.84
  6. Step 6: Final answer
    x = 27,322.16

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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.