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Finding the Fourth Proportional to 52,658.56, 78,987.84 and 17,598.21

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Solution

The fourth proportional to 52,658.56, 78,987.84 and 17,598.21 is: 26,397.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,658.56 : 78,987.84 = 17,598.21 : x
  2. Step 2: Convert to fraction form
    52,658.56/78,987.84 = 17,598.21/x
  3. Step 3: Cross multiply
    52,658.56x = 78,987.84 × 17,598.21
  4. Step 4: Simplify right side
    52,658.56x = 1,390,044,595.77
  5. Step 5: Solve for x
    x = 1,390,044,595.77/52,658.56
  6. Step 6: Final answer
    x = 26,397.32

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Similar ratio
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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.