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Finding the Fourth Proportional to 47,130.50, 70,695.75 and 14,298.50

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Solution

The fourth proportional to 47,130.50, 70,695.75 and 14,298.50 is: 21,447.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,130.50 : 70,695.75 = 14,298.50 : x
  2. Step 2: Convert to fraction form
    47,130.50/70,695.75 = 14,298.50/x
  3. Step 3: Cross multiply
    47,130.50x = 70,695.75 × 14,298.50
  4. Step 4: Simplify right side
    47,130.50x = 1,010,843,181.38
  5. Step 5: Solve for x
    x = 1,010,843,181.38/47,130.50
  6. Step 6: Final answer
    x = 21,447.75

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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.