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Finding the Fourth Proportional to 29,915.60, 44,970.60 and 25,638.80

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Solution

The fourth proportional to 29,915.60, 44,970.60 and 25,638.80 is: 38,541.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,915.60 : 44,970.60 = 25,638.80 : x
  2. Step 2: Convert to fraction form
    29,915.60/44,970.60 = 25,638.80/x
  3. Step 3: Cross multiply
    29,915.60x = 44,970.60 × 25,638.80
  4. Step 4: Simplify right side
    29,915.60x = 1,152,992,219.28
  5. Step 5: Solve for x
    x = 1,152,992,219.28/29,915.60
  6. Step 6: Final answer
    x = 38,541.50

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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.