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Finding the Fourth Proportional to 49,404.40, 74,106.60 and 28,603.60

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Solution

The fourth proportional to 49,404.40, 74,106.60 and 28,603.60 is: 42,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,404.40 : 74,106.60 = 28,603.60 : x
  2. Step 2: Convert to fraction form
    49,404.40/74,106.60 = 28,603.60/x
  3. Step 3: Cross multiply
    49,404.40x = 74,106.60 × 28,603.60
  4. Step 4: Simplify right side
    49,404.40x = 2,119,715,543.76
  5. Step 5: Solve for x
    x = 2,119,715,543.76/49,404.40
  6. Step 6: Final answer
    x = 42,905.40

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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.