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Finding the Fourth Proportional to 38,064.39, 57,013.21 and 19,312.21

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Solution

The fourth proportional to 38,064.39, 57,013.21 and 19,312.21 is: 28,926.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,064.39 : 57,013.21 = 19,312.21 : x
  2. Step 2: Convert to fraction form
    38,064.39/57,013.21 = 19,312.21/x
  3. Step 3: Cross multiply
    38,064.39x = 57,013.21 × 19,312.21
  4. Step 4: Simplify right side
    38,064.39x = 1,101,051,084.29
  5. Step 5: Solve for x
    x = 1,101,051,084.29/38,064.39
  6. Step 6: Final answer
    x = 28,926.01

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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.