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Finding the Fourth Proportional to 35,312.47, 52,968.79 and 8,658.57

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Solution

The fourth proportional to 35,312.47, 52,968.79 and 8,658.57 is: 12,987.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,312.47 : 52,968.79 = 8,658.57 : x
  2. Step 2: Convert to fraction form
    35,312.47/52,968.79 = 8,658.57/x
  3. Step 3: Cross multiply
    35,312.47x = 52,968.79 × 8,658.57
  4. Step 4: Simplify right side
    35,312.47x = 458,634,153.02
  5. Step 5: Solve for x
    x = 458,634,153.02/35,312.47
  6. Step 6: Final answer
    x = 12,987.88

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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.