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Finding the Fourth Proportional to 46,989.72, 70,477.72 and 13,700.84

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Solution

The fourth proportional to 46,989.72, 70,477.72 and 13,700.84 is: 20,549.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,989.72 : 70,477.72 = 13,700.84 : x
  2. Step 2: Convert to fraction form
    46,989.72/70,477.72 = 13,700.84/x
  3. Step 3: Cross multiply
    46,989.72x = 70,477.72 × 13,700.84
  4. Step 4: Simplify right side
    46,989.72x = 965,603,965.28
  5. Step 5: Solve for x
    x = 965,603,965.28/46,989.72
  6. Step 6: Final answer
    x = 20,549.26

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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.