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Finding the Fourth Proportional to 32,706.90, 49,076.55 and 12,986.10

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Solution

The fourth proportional to 32,706.90, 49,076.55 and 12,986.10 is: 19,485.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,706.90 : 49,076.55 = 12,986.10 : x
  2. Step 2: Convert to fraction form
    32,706.90/49,076.55 = 12,986.10/x
  3. Step 3: Cross multiply
    32,706.90x = 49,076.55 × 12,986.10
  4. Step 4: Simplify right side
    32,706.90x = 637,312,985.96
  5. Step 5: Solve for x
    x = 637,312,985.96/32,706.90
  6. Step 6: Final answer
    x = 19,485.58

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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.