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Finding the Fourth Proportional to 35,915.84, 53,873.71 and 9,619.86

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Solution

The fourth proportional to 35,915.84, 53,873.71 and 9,619.86 is: 14,429.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,915.84 : 53,873.71 = 9,619.86 : x
  2. Step 2: Convert to fraction form
    35,915.84/53,873.71 = 9,619.86/x
  3. Step 3: Cross multiply
    35,915.84x = 53,873.71 × 9,619.86
  4. Step 4: Simplify right side
    35,915.84x = 518,257,547.88
  5. Step 5: Solve for x
    x = 518,257,547.88/35,915.84
  6. Step 6: Final answer
    x = 14,429.78

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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.