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Finding the Fourth Proportional to 65,718.45, 98,577.68 and 65,718.45

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Solution

The fourth proportional to 65,718.45, 98,577.68 and 65,718.45 is: 98,577.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,718.45 : 98,577.68 = 65,718.45 : x
  2. Step 2: Convert to fraction form
    65,718.45/98,577.68 = 65,718.45/x
  3. Step 3: Cross multiply
    65,718.45x = 98,577.68 × 65,718.45
  4. Step 4: Simplify right side
    65,718.45x = 6,478,372,005.60
  5. Step 5: Solve for x
    x = 6,478,372,005.60/65,718.45
  6. Step 6: Final answer
    x = 98,577.68

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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.