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Finding the Fourth Proportional to 52,488.81, 78,780.57 and 35,580.90

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Solution

The fourth proportional to 52,488.81, 78,780.57 and 35,580.90 is: 53,403.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,488.81 : 78,780.57 = 35,580.90 : x
  2. Step 2: Convert to fraction form
    52,488.81/78,780.57 = 35,580.90/x
  3. Step 3: Cross multiply
    52,488.81x = 78,780.57 × 35,580.90
  4. Step 4: Simplify right side
    52,488.81x = 2,803,083,745.11
  5. Step 5: Solve for x
    x = 2,803,083,745.11/52,488.81
  6. Step 6: Final answer
    x = 53,403.45

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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.