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Finding the Fourth Proportional to 57,347.80, 86,021.70 and 15,794.80

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Solution

The fourth proportional to 57,347.80, 86,021.70 and 15,794.80 is: 23,692.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,347.80 : 86,021.70 = 15,794.80 : x
  2. Step 2: Convert to fraction form
    57,347.80/86,021.70 = 15,794.80/x
  3. Step 3: Cross multiply
    57,347.80x = 86,021.70 × 15,794.80
  4. Step 4: Simplify right side
    57,347.80x = 1,358,695,547.16
  5. Step 5: Solve for x
    x = 1,358,695,547.16/57,347.80
  6. Step 6: Final answer
    x = 23,692.20

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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.