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Finding the Fourth Proportional to 65,079.04, 89,809.60 and 35,271.04

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Solution

The fourth proportional to 65,079.04, 89,809.60 and 35,271.04 is: 48,674.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,079.04 : 89,809.60 = 35,271.04 : x
  2. Step 2: Convert to fraction form
    65,079.04/89,809.60 = 35,271.04/x
  3. Step 3: Cross multiply
    65,079.04x = 89,809.60 × 35,271.04
  4. Step 4: Simplify right side
    65,079.04x = 3,167,677,993.98
  5. Step 5: Solve for x
    x = 3,167,677,993.98/65,079.04
  6. Step 6: Final answer
    x = 48,674.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.