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Finding the Fourth Proportional to 84,997.42, 127,510.71 and 25,838.98

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Solution

The fourth proportional to 84,997.42, 127,510.71 and 25,838.98 is: 38,762.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,997.42 : 127,510.71 = 25,838.98 : x
  2. Step 2: Convert to fraction form
    84,997.42/127,510.71 = 25,838.98/x
  3. Step 3: Cross multiply
    84,997.42x = 127,510.71 × 25,838.98
  4. Step 4: Simplify right side
    84,997.42x = 3,294,746,685.48
  5. Step 5: Solve for x
    x = 3,294,746,685.48/84,997.42
  6. Step 6: Final answer
    x = 38,762.90

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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.