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Finding the Fourth Proportional to 55,064.70, 77,246.10 and 55,064.70

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Solution

The fourth proportional to 55,064.70, 77,246.10 and 55,064.70 is: 77,246.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,064.70 : 77,246.10 = 55,064.70 : x
  2. Step 2: Convert to fraction form
    55,064.70/77,246.10 = 55,064.70/x
  3. Step 3: Cross multiply
    55,064.70x = 77,246.10 × 55,064.70
  4. Step 4: Simplify right side
    55,064.70x = 4,253,533,322.67
  5. Step 5: Solve for x
    x = 4,253,533,322.67/55,064.70
  6. Step 6: Final answer
    x = 77,246.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.