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Finding the Fourth Proportional to 52,064.70, 77,987.70 and 43,316.70

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Solution

The fourth proportional to 52,064.70, 77,987.70 and 43,316.70 is: 64,884.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,064.70 : 77,987.70 = 43,316.70 : x
  2. Step 2: Convert to fraction form
    52,064.70/77,987.70 = 43,316.70/x
  3. Step 3: Cross multiply
    52,064.70x = 77,987.70 × 43,316.70
  4. Step 4: Simplify right side
    52,064.70x = 3,378,169,804.59
  5. Step 5: Solve for x
    x = 3,378,169,804.59/52,064.70
  6. Step 6: Final answer
    x = 64,884.07

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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.