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Finding the Fourth Proportional to 5,655.30, 8,482.95 and 5,415.35

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Solution

The fourth proportional to 5,655.30, 8,482.95 and 5,415.35 is: 8,123.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,655.30 : 8,482.95 = 5,415.35 : x
  2. Step 2: Convert to fraction form
    5,655.30/8,482.95 = 5,415.35/x
  3. Step 3: Cross multiply
    5,655.30x = 8,482.95 × 5,415.35
  4. Step 4: Simplify right side
    5,655.30x = 45,938,100.87
  5. Step 5: Solve for x
    x = 45,938,100.87/5,655.30
  6. Step 6: Final answer
    x = 8,123.02

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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.