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Finding the Fourth Proportional to 46,776.60, 70,164.90 and 28,114.20

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Solution

The fourth proportional to 46,776.60, 70,164.90 and 28,114.20 is: 42,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,776.60 : 70,164.90 = 28,114.20 : x
  2. Step 2: Convert to fraction form
    46,776.60/70,164.90 = 28,114.20/x
  3. Step 3: Cross multiply
    46,776.60x = 70,164.90 × 28,114.20
  4. Step 4: Simplify right side
    46,776.60x = 1,972,630,031.58
  5. Step 5: Solve for x
    x = 1,972,630,031.58/46,776.60
  6. Step 6: Final answer
    x = 42,171.30

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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.