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Finding the Fourth Proportional to 84,792.80, 127,246.80 and 47,352.80

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Solution

The fourth proportional to 84,792.80, 127,246.80 and 47,352.80 is: 71,061.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,792.80 : 127,246.80 = 47,352.80 : x
  2. Step 2: Convert to fraction form
    84,792.80/127,246.80 = 47,352.80/x
  3. Step 3: Cross multiply
    84,792.80x = 127,246.80 × 47,352.80
  4. Step 4: Simplify right side
    84,792.80x = 6,025,492,271.04
  5. Step 5: Solve for x
    x = 6,025,492,271.04/84,792.80
  6. Step 6: Final answer
    x = 71,061.37

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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.