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Finding the Fourth Proportional to 84,902.87, 127,409.58 and 32,312.81

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Solution

The fourth proportional to 84,902.87, 127,409.58 and 32,312.81 is: 48,490.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,902.87 : 127,409.58 = 32,312.81 : x
  2. Step 2: Convert to fraction form
    84,902.87/127,409.58 = 32,312.81/x
  3. Step 3: Cross multiply
    84,902.87x = 127,409.58 × 32,312.81
  4. Step 4: Simplify right side
    84,902.87x = 4,116,960,913.67
  5. Step 5: Solve for x
    x = 4,116,960,913.67/84,902.87
  6. Step 6: Final answer
    x = 48,490.25

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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.