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Finding the Fourth Proportional to 65,776.46, 98,689.55 and 39,499.52

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Solution

The fourth proportional to 65,776.46, 98,689.55 and 39,499.52 is: 59,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,776.46 : 98,689.55 = 39,499.52 : x
  2. Step 2: Convert to fraction form
    65,776.46/98,689.55 = 39,499.52/x
  3. Step 3: Cross multiply
    65,776.46x = 98,689.55 × 39,499.52
  4. Step 4: Simplify right side
    65,776.46x = 3,898,189,854.02
  5. Step 5: Solve for x
    x = 3,898,189,854.02/65,776.46
  6. Step 6: Final answer
    x = 59,264.21

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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.