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Finding the Fourth Proportional to 56,762.84, 85,144.26 and 17,320.16

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Solution

The fourth proportional to 56,762.84, 85,144.26 and 17,320.16 is: 25,980.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,762.84 : 85,144.26 = 17,320.16 : x
  2. Step 2: Convert to fraction form
    56,762.84/85,144.26 = 17,320.16/x
  3. Step 3: Cross multiply
    56,762.84x = 85,144.26 × 17,320.16
  4. Step 4: Simplify right side
    56,762.84x = 1,474,712,206.28
  5. Step 5: Solve for x
    x = 1,474,712,206.28/56,762.84
  6. Step 6: Final answer
    x = 25,980.24

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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.