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Finding the Fourth Proportional to 52,610.90, 78,801.15 and 51,458.90

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Solution

The fourth proportional to 52,610.90, 78,801.15 and 51,458.90 is: 77,075.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,610.90 : 78,801.15 = 51,458.90 : x
  2. Step 2: Convert to fraction form
    52,610.90/78,801.15 = 51,458.90/x
  3. Step 3: Cross multiply
    52,610.90x = 78,801.15 × 51,458.90
  4. Step 4: Simplify right side
    52,610.90x = 4,055,020,497.74
  5. Step 5: Solve for x
    x = 4,055,020,497.74/52,610.90
  6. Step 6: Final answer
    x = 77,075.67

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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.