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Finding the Fourth Proportional to 65,497.01, 90,178.62 and 59,510.76

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Solution

The fourth proportional to 65,497.01, 90,178.62 and 59,510.76 is: 81,936.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,497.01 : 90,178.62 = 59,510.76 : x
  2. Step 2: Convert to fraction form
    65,497.01/90,178.62 = 59,510.76/x
  3. Step 3: Cross multiply
    65,497.01x = 90,178.62 × 59,510.76
  4. Step 4: Simplify right side
    65,497.01x = 5,366,598,211.95
  5. Step 5: Solve for x
    x = 5,366,598,211.95/65,497.01
  6. Step 6: Final answer
    x = 81,936.54

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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.