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Finding the Fourth Proportional to 7,477.95, 10,319.60 and 4,495.50

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Solution

The fourth proportional to 7,477.95, 10,319.60 and 4,495.50 is: 6,203.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.95 : 10,319.60 = 4,495.50 : x
  2. Step 2: Convert to fraction form
    7,477.95/10,319.60 = 4,495.50/x
  3. Step 3: Cross multiply
    7,477.95x = 10,319.60 × 4,495.50
  4. Step 4: Simplify right side
    7,477.95x = 46,391,773.04
  5. Step 5: Solve for x
    x = 46,391,773.04/7,477.95
  6. Step 6: Final answer
    x = 6,203.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.