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Finding the Fourth Proportional to 65,880.48, 98,830.20 and 21,496.24

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Solution

The fourth proportional to 65,880.48, 98,830.20 and 21,496.24 is: 32,247.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,880.48 : 98,830.20 = 21,496.24 : x
  2. Step 2: Convert to fraction form
    65,880.48/98,830.20 = 21,496.24/x
  3. Step 3: Cross multiply
    65,880.48x = 98,830.20 × 21,496.24
  4. Step 4: Simplify right side
    65,880.48x = 2,124,477,698.45
  5. Step 5: Solve for x
    x = 2,124,477,698.45/65,880.48
  6. Step 6: Final answer
    x = 32,247.45

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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.