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Finding the Fourth Proportional to 43,298.40, 64,915.20 and 23,599.20

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Solution

The fourth proportional to 43,298.40, 64,915.20 and 23,599.20 is: 35,381.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,298.40 : 64,915.20 = 23,599.20 : x
  2. Step 2: Convert to fraction form
    43,298.40/64,915.20 = 23,599.20/x
  3. Step 3: Cross multiply
    43,298.40x = 64,915.20 × 23,599.20
  4. Step 4: Simplify right side
    43,298.40x = 1,531,946,787.84
  5. Step 5: Solve for x
    x = 1,531,946,787.84/43,298.40
  6. Step 6: Final answer
    x = 35,381.14

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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.