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Finding the Fourth Proportional to 19,907.55, 29,865.64 and 6,056.19

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Solution

The fourth proportional to 19,907.55, 29,865.64 and 6,056.19 is: 9,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.55 : 29,865.64 = 6,056.19 : x
  2. Step 2: Convert to fraction form
    19,907.55/29,865.64 = 6,056.19/x
  3. Step 3: Cross multiply
    19,907.55x = 29,865.64 × 6,056.19
  4. Step 4: Simplify right side
    19,907.55x = 180,871,990.31
  5. Step 5: Solve for x
    x = 180,871,990.31/19,907.55
  6. Step 6: Final answer
    x = 9,085.60

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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.