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Finding the Fourth Proportional to 59,279.20, 88,888.40 and 17,720.80

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Solution

The fourth proportional to 59,279.20, 88,888.40 and 17,720.80 is: 26,572.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,279.20 : 88,888.40 = 17,720.80 : x
  2. Step 2: Convert to fraction form
    59,279.20/88,888.40 = 17,720.80/x
  3. Step 3: Cross multiply
    59,279.20x = 88,888.40 × 17,720.80
  4. Step 4: Simplify right side
    59,279.20x = 1,575,173,558.72
  5. Step 5: Solve for x
    x = 1,575,173,558.72/59,279.20
  6. Step 6: Final answer
    x = 26,572.11

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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.