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Finding the Fourth Proportional to 55,686.60, 83,529.90 and 39,065.40

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Solution

The fourth proportional to 55,686.60, 83,529.90 and 39,065.40 is: 58,598.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,686.60 : 83,529.90 = 39,065.40 : x
  2. Step 2: Convert to fraction form
    55,686.60/83,529.90 = 39,065.40/x
  3. Step 3: Cross multiply
    55,686.60x = 83,529.90 × 39,065.40
  4. Step 4: Simplify right side
    55,686.60x = 3,263,128,955.46
  5. Step 5: Solve for x
    x = 3,263,128,955.46/55,686.60
  6. Step 6: Final answer
    x = 58,598.10

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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.