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Finding the Fourth Proportional to 56,056.80, 77,386.80 and 36,949.08

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Solution

The fourth proportional to 56,056.80, 77,386.80 and 36,949.08 is: 51,008.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,056.80 : 77,386.80 = 36,949.08 : x
  2. Step 2: Convert to fraction form
    56,056.80/77,386.80 = 36,949.08/x
  3. Step 3: Cross multiply
    56,056.80x = 77,386.80 × 36,949.08
  4. Step 4: Simplify right side
    56,056.80x = 2,859,371,064.14
  5. Step 5: Solve for x
    x = 2,859,371,064.14/56,056.80
  6. Step 6: Final answer
    x = 51,008.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.