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Finding the Fourth Proportional to 35,915.94, 53,869.05 and 9,620.91

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Solution

The fourth proportional to 35,915.94, 53,869.05 and 9,620.91 is: 14,430.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,915.94 : 53,869.05 = 9,620.91 : x
  2. Step 2: Convert to fraction form
    35,915.94/53,869.05 = 9,620.91/x
  3. Step 3: Cross multiply
    35,915.94x = 53,869.05 × 9,620.91
  4. Step 4: Simplify right side
    35,915.94x = 518,269,281.84
  5. Step 5: Solve for x
    x = 518,269,281.84/35,915.94
  6. Step 6: Final answer
    x = 14,430.06

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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.